Analysis and testing of the prototype of the Russian sniper rifle TB2-LAW

The Kalashnikov Concern, which continues to make an enormous contribution to the development of the Russian defense industry and regularly presents promising innovations, recently announced a prototype of the TB2-Law sniper rifle, created on the basis of the prototype of the karabiner, the “maral”.

The length of the barrel presented by the prototype rifle 350 mm, used cartridge .308 Winchester (7,62x51 mm) sample. 1947 d. This version of the "city" sniper rifle has a shortened barrel, a powerful DTC, a different bolt handle and a "police" box.

Conceptually, the rifle has a lot in common with the Elk carbine.

According to the expert of the Kalashnikov concern, Evgeny Spiridonov, this new product will be interesting for the civilian market, where it is “doomed” to great prospects.

In the new video, the concern's expert, together with Maxim Polyakov, who heads the ORENGUNTEAM team, will present the viewers with a complete analysis of the potential novelty and test the prototype TB2-LAW rifle in real conditions, identifying its possible advantages and disadvantages.

Comments

[SERGEY SERGEEVICS]

For our weapons it was possible to make a rifle for our caliber, rather than using a foreign one. According to the video, we can say that the rifle was not bad at all. For hunting, you can get one.

[jmndslthr.]

Our cartridges were certainly not fools, and for the specific task assigned to them then the balance of cost / effectiveness was kept as it should, only the conditions changed quite abruptly, and the range of cartridges against the background of the world looks somewhat monotonous. of course, you can still slightly Domodify: add bullet to change the powder - but there is a limit to it + in warehouses millions of previous versions with old characteristics

[Major_Vortex]

Quote: jmndslthr

our patrons were definitely not fools

What are "your cartridges", designed back in the 19th century for the Mosin rifle? It's time for the army to forget about him. For hunters, let it be. For a bolt sniper rifle, design a cartridge with a traditional bottle-shaped case, but with a reduced flange. So that while maintaining the rigidity of the barrel and receiver of the rifle, to get a lightweight bolt, this will not affect the accuracy of the sniper rifle. The bolt itself can be lightened even more by removing excess metal from the bolt stem. Do not touch the combat bolt. It is better to perform a combat cylinder with 3 or 4 stops in order to increase the accuracy of the rifle and reduce the angle of rotation of the rifle bolt handle when reloading. The saved weight of the rifle will be devoured by better and more powerful sights, or a heavier barrel profile, which is more accurate and heats up more slowly when firing.
I make the stock of the sniper rifle a composite one, in the form of a Kevlar-carbon or carbon "shell" and a light porous core (so that it does not rattle and unmask the sniper). We get a modern high-end sniper rifle for a modern sniper cartridge, not a melee club, where the heavier the club, the better. And a sniper with such a rifle will climb mountains and ravines more quickly, and shoot accurately.

[Major_Vortex]

... to develop a fuse for a sniper rifle silent - this is found in modern weapons. Although it’s a little more expensive, it doesn’t unmask the sniper additionally.

[Cowbra]

Forgot to add. that a sniper rifle and a high-precision cartridge is needed, so how many machine guns are stored in warehouses is a factor of little concern. And another thing is that a sniper weapon is not a well-aimed rifle, such as a SVD. and this is not the level of detachment, so the unification of the cartridge of a sniper weapon with the caliber of the detachment is not necessary for anyone, there is NO sniper in the detachment.
But if you were talking about replacing the SVD, then immediately throw it away - only self-loading

[Major_Vortex]

Quote: Cowbra

Forgot to add. that a sniper rifle and a high-precision cartridge is needed, so how many machine guns are stored in warehouses is a factor of little concern. And another thing is that a sniper weapon is not a well-aimed rifle, such as a SVD. and this is not the level of detachment, so the unification of the cartridge of a sniper weapon with the caliber of the detachment is not necessary for anyone, there is NO sniper in the detachment.
But if you were talking about replacing the SVD, then immediately throw it away - only self-loading

I'm talking about a bolt rifle for a sniper. He did not write everything, but gave a general direction for development. And it should be in service now. Because tomorrow the weapon will appear even better. A composite box inside can be interesting, with a skeletonized frame made of light special alloys, so that the receiver mounts to the rifle’s bed more rigidly and inertly connect with the shoulder rest of the stock, without increasing the weight of the weapon excessively. Provide a couple of useful settings for personal data arrow on the butt. It’s even better to have removable light stock elements in the assortment complete with a rifle, for shooters of different anthropometry, so that you can immediately configure the stock for the shooter, and not overload the weapons that you have to pull on yourself.
The sniper cartridge should have the best quality gunpowder with an exact weight, the best capsule known and produced, the cartridge case is designed in terms of the fact that it is necessary to shoot in the cold, and in the hottest climate, so that the cartridge case does not wedge, and from the store the cartridge was fed normally.
With high-precision bullets, progress is developing and bullets can be changed as more accurate ones appear. Now turned-monolithic from special alloys show the best results. But they need to be sharpened on high-precision CNC machines, and this machine building and machine tool building need to be developed. The alloy itself must be cast correctly - and this is also a technological task. But everything is decided, because it is all already being released.

A self-loading sniper rifle to replace the SVD can be made almost to breathe into the back of the head with the most high-precision bolt. Only self-loading will turn out a little heavier than bolt, and slightly longer. More expensive to manufacture. But where high density sniper fire is needed, such a weapon is necessary. It is harder because a high-precision barrel with an integrated gas exhaust system, devoid of the disadvantages of modern sniper gas rifles, will turn out to be quite a bit heavier than modern ones with worse accuracy and accuracy, but minus the weight of the traditional gas exhaust system of the rifle, plus the increased accuracy of such a barrel - and we win in the end. The receiver and the bolt group of the self-loading rifle also comes out a bit heavier than the bolt one - this is a bit incapable and there's nothing to be done about it. To replace the SVD, you can produce a rifle as close as possible in key parameters to the best of high-precision bolt. But it comes out more expensive and more difficult than bolted.

The article is not self-loading. The direct lock is a jamb in military weapons. In the video, by the way, her wedges - and this is death on the battlefield. And the plywood (laminate) butt is better left for hunters - they love all beauty.

[Cowbra]

Well, about the replacement of the SVD, you two went too far. Look. in which I immediately disagree with you - firstly, you have to drag along with the squad, and it is advisable not to loom too much, although, of course, it is still a sniper and a machine gunner - kamikaze. Further, one of Marksman's tasks is the high-speed shooting exercise. It is precisely target, not suppression fire - accurate shooting, frequent either at quickly appearing or at numerous targets - quickly, a lot and accurately. With precision "like a bolt" you need to set the sight on it like a bolt, and he has a field of view with a mouse pisbn, while you catch the target with the sight - you get old. Marksman does not need such accuracy, he has one and a half effective range of fire of the squad - behind the eyes. Those. 600 meters, do not turn on the machine gun.
By the way, for the same reason, he self-loading, and not a chatter. Without this, in the city, such a sniper didn’t fall to the department - they’ll stick in contact. this sniper fired once, and until the end of the battle he pulled the handle when it recharged - the battle was over

[Major_Vortex]

Quote: Cowbra

Well, about the replacement of the SVD, you greatly went too far.

The SVD has a number of disadvantages that worsen the accuracy and accuracy of the rifle. Some problem areas in the SVD can be stopped. The SVD gas exhaust system with moving parts of automation inside is not the best option for sniper weapons. Gas outlet from above - impairs accuracy. We need a gas exhaust system that horizontally and vertically provides excellent accuracy, so that no pistons run inside that cause a disturbance to the rifle and impair the accuracy of the shot, and if the pistons are used, then light, with a short stroke. Or use one piston on the axis of the bore, like the AR-15. Place the pistons in the receiver — closer to the stop, so that the weapons dangle less — this is the physical lever on the end of which a weight (piston) hangs. The vent pipes themselves should be integrated into the barrel so that they do not hang with an additional load without carrying any useful function, but are part of a more rigid barrel structure. Make three thin gas vents at the vertices of an equilateral triangle in the trunk array, facing the receiver. The barrel itself should be made closer along the transverse profile to an equilateral triangle, and not to a circular section. So that the mass of the barrel was minimal, and the rigidity of the barrel, on the contrary, increased. But the barrel so as not to muzzle and not vomit when heated from firing. Such a barrel will also be better cooled due to the larger surface area of ​​the barrel. This is only on the trunk.
Inside the receiver there is also a mass of interesting options to increase the accuracy and accuracy of a self-loading sniper rifle, without increasing the mass of weapons.
But you need to start with a more perfect cartridge, with a reduced flange to do right away, and not an expensive high-tech crutch on a cartridge from the 19th century.

[Major_Vortex]

Quote: Mayor_Vikhr

The SVD has a number of disadvantages that worsen the accuracy and accuracy of the rifle. Some problem areas in SVD can be stopped ...

I don’t know who put the minus for the design of the barrel and the gas exhaust system for a sniper rifle without moving parts, which gives a very bent trunk, where the gas exhaust system does not weigh anything, because the entire mass of the gas exhaust system works on the rigidity of the barrel and is part of the barrel array. The bending stiffness of such a trunk will be the same in horizontal and vertical planes, and it will be higher than that of a round cross-section. And what’s important: the rigidity of such a barrel will change during barrel heating during shooting uniformly in vertical and horizontal planes, which will keep us a round and very small pile, like a good bot rifle. A barrel of this section has a large intrinsic cooling surface for efficient heat removal.
At the moment of a shot, only a bullet moves in such a barrel and no effect on the accuracy and accuracy of firing of the gas exhaust system, as in the SVD, is observed. This design of the barrel and the exhaust system is devoid of the characteristic drawbacks of modern exhaust systems of self-loading sniper rifles.

.... Gas vents (3 pieces at an angle of 120 degrees around the barrel) go into the receiver, where the bolt and bolt have centers of inertia on the axis of the barrel. A cartridge with a sleeve with a reduced flange will make it possible to make such a bolt and bolt frame of a smaller cross section, which will make such a system easier, causing less disturbance inside the rifle when the bolt frame and bolt move. The gas exhaust frame itself is a piston of the gas exhaust system, the cylindrical piston of which is also coaxial to the bore (similar to the gas piston AR-15, but structurally made everything is somewhat different). And the return spring of the bolt frame of such a sniper rifle is located in a folding side, either removable or in a fixed butt, like the AR-15.

The design is devoid of almost all the shortcomings that negatively affect the accuracy and accuracy of fire, which are observed in modern gas sniper rifles. All that remains is a movable shutter (bolt frame) with a rotatable larva, but they are light and compact (thanks to a cartridge with a reduced sleeve flange), they are aligned with the axis of the bore in close proximity to the breech section of the barrel, and have centers of inertia on one axis with the bore.
Structurally, such a rifle can be made very rigid and precise, and accuracy can be increased as necessary. The design of the rifle is easily disassembled, access to everything necessary for cleaning and servicing rifle assemblies is not difficult.

To master only the new design of the barrel with three built-in thin gas vents running along the bore for the industry, which is quite capable of modern industry. The remaining structural elements of such a rifle are simpler than a steamed turnip.

[Major_Vortex]

Quote: Mayor_Vikhr

The gas exhaust frame itself is a piston of the gas exhaust system, the cylindrical piston of which is also coaxial to the bore (similar to the gas piston AR-15, but structurally made everything is somewhat different).

... Powder gases from 3 thin gas outlets, then going already inside the receiver of a sniper rifle, do not affect the front part of the cylindrical lightweight gas outlet frame, but on the annular piston made in the form of a small cylindrical annular thickening in the rear part of the bolt carrier - in the very the end of the bolt carrier, behind which there is already a return spring in the tube in the butt. There is space inside the receiver for a similar piston system with a short slide, just outside the window for the trigger in the bolt carrier. This design of the piston system of a sniper rifle can be made "clean", in contrast to the "dirty" design of the gas vent system of the AR-15 rifle. With the minimum dimensions, the weight of the movable bolt group of the rifle. All parts of the movable bolt group are located coaxially with the barrel bore - they have a common center of inertia with the axis of the barrel bore, inside which the bullet accelerates when fired. All fixed parts effectively use the mass of the structure to increase the rigidity of the barrel and receiver, the rigidity of the rifle structure, the layout is symmetrical to the axis of the barrel bore, this will give the same pretty round bunch when firing such a rifle. The gas outlet eats a little bullet speed, so we make the barrel of a gas-operated self-loading sniper rifle several centimeters longer in order to further accelerate the bullet in the barrel.

[Major_Vortex]

Quote: Mayor_Vikhr

With minimum dimensions, the weight of the movable bolt group of the rifle. All the details of the movable bolt group are located coaxially with the barrel channel - they have a center of inertia common with the axis of the barrel channel, inside which the bullet accelerates when fired.

The transverse linear dimensions of the shutter frame and shutter (along with their mass) will decrease due to the use of a cartridge with a reduced sleeve flange. The angle of rotation of the shutter to increase the accuracy of fire is reduced by increasing the number of combat stops of the shutter larva. And the height of the combat stops can be reduced by placing the stops in 2-3 rows one after another:

The influence of the diameter of the sleeve flange on the dimensions of the shutter:

Reducing the height of the combat stops bolt larva by placing them in 3 rows with a bolt rifle:

[Cowbra]

Well, I’ll tell you. Do you know how SKS is licked? Well, too, a flue gas outlet. I agree, but "soft kickback" is done. agree, hemorno. But I did it in the Donbass - and believe me, I can shoot. and a bike of 5 rounds for 500 off the open one - they told me later. it's just a joke that it was I who argued with one of the "winds" - he did not believe it. I put seven in a pack

[Major_Vortex]

Quote: Cowbra

Well, I’ll tell you. Do you know how SKS is licked? Well, too, the flue gas outlet. I agree, but "soft kickback" is done. I agree, hemorno.

I proposed a rifle in which the gas outlet does not twist the rifle. Inside a gas outlet of such a rifle, a piston or a gas outlet rod does not cause chaotic disturbances that interfere with the accuracy of the rifle, like gas exhaust rifles of the SVD and AK type, because it is absolutely empty. Any pair of moving automation parts has manufacturing tolerances to ensure the mobile operation of weapon automation parts, that is, gaps that, when the piston or rod moves inside the cylinder, provoke beating of the automation parts, which causes additional chaotic perturbations of the rifle and affects the accuracy of the shot. This trunk in the gas outlet only has hot compressed gas at the moment when, when fired, the powder gases from the barrel begin to enter the gas exhaust system, and even that is distributed evenly in three thin gas exhaust channels along the barrel channel located at an angle of 120 degrees along the axis of the barrel channel. The gas outlets themselves, being part of the trunk array extended slightly outward and forming an equilateral triangle in profile with the barrel channel in the center, only add rigidity to the barrel evenly along the entire length of the barrel and receiver. The barrel is lengthened without bending along with gas outlets during firing, because structurally it is one monolith, everything is balanced and centered. This is a more accurate vent design even than with AR-15 rifles. Self-loading automatic equipment is used in the receiver of the rifle, which also causes minimal disturbance when shooting. Everything is centered and balanced along the axis of the bore, the masses of the moving parts are small, linear and radial movements are minimal, the runout is minimal. Unnecessary moving parts are excluded from the design of automation. The very design of such a rifle all works on the rigidity of the rifle, evenly distributed around the axis of the barrel bore up to the buttstock, this design affects the accuracy of the shot in the best way. As in an airplane everything should fly and nothing should pull it to the ground, so in this rifle everything shoots and directs a more accurately shot at the target, it does not hang dead weight, and moreover, it does not interfere with the accuracy of aiming when firing.
At the vertices of the triangle, you can increase the rigidity of the structure, as they increase the rigidity of long spans when designing bridges. To rifle on a dalnyak shot even more accurately. 3 vertices of a triangular section of the barrel and receiver on the tops of which you can mount and thereby increase the stiffness of the rifle; 3 additional parts that work on bending resistance, like long spans of a bridge, they will also work additionally as heat sinks, or without using additional parts, initially calculate the design possessing the necessary stiffness. In this case, the mass of weapons will be minimal for weapons with such parameters of accuracy and accuracy.

New barrel design with three integrated thin vents along the bore, and cartridge with reduced flange cartridges and we already got a 21st century sniper rifle

[Cowbra]

Tula SK Lynx - do not know? There it was just like that, only there was a caliber of 12,7 for one hundred and eight. But the vinar was shocked, though, as far as I remember, 3 of them were done, not only three but two and almost from the DTK gas vent

[Major_Vortex]

There are 3 gas vents at the vertices of an equilateral triangle. But these are not external vent pipes that are connected to the barrel through a separate part. And thin round vent gas channels in the trunk array. Such a gas outlet does not hang dead weight on the barrel, impairing the accuracy of the weapon and increasing the mass of the weapon, but works as one part of the barrel, on the contrary, increasing the rigidity of the barrel and, as a result, the accuracy and accuracy of the weapon. The gas channels of this design allows you to make closer to the inner wall of the barrel, which will make the design of such a barrel with gas pipes more compact. And we get rid of excess unused weight in the design of a sniper rifle, in the form of an external gas outlet made of metal as an additional unit (+ piston and piston rod for rifles of the SVD type).
If you carry out the design of the automatic rifle with the receiver as described above, then you can get the most-rigid receiver design giving the same stiffness vertically and horizontally. In a receiver with 3 thin gas vents of circular cross section in the array of the receiver’s part at an angle of 120 degrees at the vertices of an equilateral triangle at the same distance from the axis of the barrel’s bore (like the barrel of this rifle), a single-row magazine window will be located below , which has a minimum width and area, in contrast to a double-row without redevelopment, which will weaken the receiver of the sniper rifle more strongly, on the right of the receiver is a window for ejecting shells, on the left is a false window closed with a plastic plug. All openings of the minimum width and area for the cartridge used are located symmetrically to the axis of the barrel bore at an angle of 120 to each other. This design distributes the stiffness evenly around the circumference and the rifle will not have problems in accuracy when shooting, the pile will be compact and round. The rigidity of such a barrel and such a receiver easily build up at the design stage. The store at the sniper rifle is single-row, because such a store has the smallest area under the mine window and the minimum width. This is a sniper rifle, it must shoot further and more accurately than any store-mounted self-loading rifles and machine guns. A single-row magazine with 5-10 rounds is enough for a self-loading sniper rifle. The sniper rifle cartridges are powerful and long-range, with a large sleeve, the recoil of such weapons and the loads causing deformation of the receiver is great, you need to design a sniper weapon under a powerful and long-range cartridge, taking into account these realities, so that it remains light, but it has the accuracy of a sniper weapons.

If you do not 3, but 2 gas vents in such a rifle, then when the barrel and the walls of the gas ducts are heated from the effects of hot powder gases during firing, accuracy will deteriorate. Even if the barrel with two gas outlets is designed so that in the cold state it gives perfect accuracy and the heap on the target is like a circle: if 2 gas outlets of such a product are located horizontally, then the horizontal accuracy will deteriorate, if vertically, then the accuracy will fall along verticals. Gas pipes, if you do not make them excessively thick-walled (which will affect the mass of weapons), like the barrel, they heat up when shooting, thin ones - quickly enough. And the hot metal becomes softer.

We are talking about a sniper rifle. And I proposed a self-loading sniper rifle, but with a more advanced design than modern gas sniper rifles.

[Cowbra]

And thin round vent gas channels in the trunk array.

Well, here again about the same Lynx - the magnificent vinar. But to clean - nothing, these two are subtle. along the trunk, nothing will fit into these two channels, and the powder gases are soot ....
By the way, there was still a jamb. I repeat - two channels. And the imbalance - threw the barrel at the recoil, unevenly. Treshka will also be

[Major_Vortex]

Quote: Cowbra

Well, here again about the same Lynx - the magnificent vinar. But to clean - nothing, these two are subtle. along the trunk, nothing will fit into these two channels, and the powder gases are soot ....

What Lynx: links, photos?
The gas vents are purged with powder gases under pressure during firing. If you have smoked, then you can clean it with liquid chemistry - this is not a problem. The problem is that a hefty flue pipe hung on the barrel with moving parts of the flue system inside will not allow you to create a sniper rifle. Sniper needs an accurate self-loading weapon. The military refuse from systems without a gas outlet in self-loading weapons with the necessary accuracy and accuracy parameters and switch to gas exhaust systems. It is necessary to make an accurate gas outlet. because traditional gas vents for sniper weapons are not accurate enough.
AR-15 rifles have a thin vent tube. Rifles of this design have been used by a huge number of military in many countries of the world since the 60s of the 20th century. The problem is contrived. The "pride" of the USSR that the AK gas outlet can be cleaned with broken bricks collides with another "not pride" - that the AK gas outlet system cannot provide sufficient accuracy, like a sniper weapon. In the battle, the winner is the sniper who hits, and not in the gas outlet of the rifle whose broken brick remained after the last read of the weapon, and everything works It's time to move away from stereotypes about weapons. The Communists invented myths about weapons, and today, after more than half a century, they are starting to buy foreign weapons for the army, which is not cleaned with broken bricks, but it does. And they begin to do their job in the West. You have to choose one of two: an exact weapon, or with the remains of a brick in a gas outlet. The sniper will choose the exact weapon. About brick is sarcasm, but the meaning should be clear.

Quote: Cowbra

By the way, there was still a jamb. I repeat - two channels. And the imbalance - threw the barrel at the recoil, unevenly. Treshka will also be

I wrote about two channels above. A chair with two legs is not made. For stability, you need at least 3 legs. This is oversimplified, but this is also the case with gas vents in such a barrel. There should be 3-4 absolutely identical, located equidistant from the bore and symmetrically relative to the axis of the bore: if there are 3 gas outlet channels, then 120 degrees between the gas outlet channels, if 4, then 90 degrees between the gas outlet channels. More than 4 in small-caliber weapons do not see examples where this is justified. A sniper rifle can be 7 mm, 7,62 mm (or 300 in the American manner), 338 and 375 calibers - today these calibers are highly accurate. Larger calibers in a sniper weapon of an acceptable mass are no longer as accurate and accurate. There is still a kind of 50th (12,7 mm), but it is already "antimaterial", not so accurate.

Quote: Cowbra

Treshka will also be

What rifle, I do not see its gas vents? Three will not be thrown anywhere, because they are made in the trunk by one piece in the array of the trunk, and are not hung in the form of tubes outside the trunk. And when heated, they will heat up uniformly, because they are the same, and they will not twist the barrel, because the barrel has a balanced symmetrical design relative to the axis of the barrel channel. The vent pipe of a conventional rifle expands and lengthens when fired, as does the barrel of a weapon when fired. It still lengthens when heated, like a barrel, because the metal has the property of expanding when heated. The barrel and the exhaust pipe lengthen differently during firing, they also heat up not uniformly and unevenly, so the aiming point goes away when firing at the flue. In addition, the stiffness of the barrel with a rigid gas outlet laterally made as a single design, has unequal bending stiffness in different directions.
I proposed a gas vent in which these problem areas were resolved. It heats up symmetrically to the axis of the bore, the bending stiffness of such a barrel is stabilized vertically and horizontally, and it is higher than that of a round barrel. And such a barrel is better cooled in this case, due to the developed surface of the barrel that transfers heat to the atmosphere. This is also a suspended barrel in design, but devoid of the disadvantages of traditional gas exhaust rifles with a separate gas outlet. 3 thin gas vents and the bore are made in a single array of the barrel, and are not interconnected as separate parts of a rifle.

[Cowbra]

Sniper complex Lynx, developed at TOZ. in the middle of the 90s. The first complex, where they put the ballistic calculator. his TsNIITOCHMASH, specifically - Valera and Oleg led him

[Major_Vortex]

Quote: Cowbra

Sniper complex Lynx, developed at TOZ. in the middle of the 90s. The first complex, where they put the ballistic calculator. his TSNIITOCHMASH

I heard about the ballistic calculator, but it seems that even earlier it was back in the USSR, not as a serial model. I heard from a friend who studied at a military school in the USSR. Intelligent sights with integrated ballistic calculators are now available. Immediately from the menu, different types of weapons and ammunition - choose and shoot.

I described the design. She has nothing to do with Lynx, because I am looking at new items and modern models in the global arms market. Understood the most accurate modern self-loading sniper rifles: what and how it works there, and how this affects the accuracy of the weapon and its weight. And came the design, which would be devoid of the shortcomings of existing similar rifles. Moreover, at least now start it in production. If technologists decide how to make a barrel with three thin gas outlet channels of circular cross section along the barrel channel, and how to obtain the external profile of such a barrel, because various technological solutions are possible here. This is not a barrel with a round profile, the production technology of which was developed more than 100 years ago.
Such a rifle has a higher accuracy and accuracy for long-range shooting. Accuracy can be increased simply by increasing the rigidity of the rifle - as I wrote. I brought the general constructive scheme, and brought the key points affecting the accuracy of the rifle and the distribution of mass of the rifle. Her trunk does not twist. For ease of cleaning, for example, you can install removable keys made of stainless steel, which will be removed like a key for the gas exhaust system AK-12, but only installed not aligned with the gas outlet, but perpendicular to the trunk on the axis of the gas outlet of the outlet from the bore, to make them more compact, than similar AK, tk. Smaller rifle vents and parts can be minimized in size. I took out 3 keys on the bayonet mounts, and then clean 3 through channels of the gas outlets, clean the barrel channel itself, poke around in the gas outlets, if there is soot.
For such a rifle, you need a modern cartridge, not with a protruding edge, so as not to get a monster in size and weight, but with a reduced sleeve flange, which allows you to construct a rifle bolt and receiver of minimum size and weight.
I don’t know what this trunk has in common with the Lynx’s trunk, because I didn’t see the Lynx’s trunk, but according to the description they are different.

[Cowbra]

but it seems like he’s been before, back in the USSR,

So for sure, a monochromatic display, and also put under one complex, of the same caliber. In the series did not go. but in battles he was, specifically, in Grozny.
By the way, I would tear my head off - give it to conscripts .... GRU, not GRU, it's a pioneer. snot, waving!

[Major_Vortex]

Quote: Cowbra

So for sure, a monochromatic display, and also put under one complex, of the same caliber.

I do not know what was there and how it was. I heard in the most general terms. But I know what I need now.
Snipers need Russian high-precision sniper cartridges for bullets with a high ballistic coefficient to accelerate in the barrel to 900-1100 m / s, ensure accuracy of less than 1 MOA.
A sleeve for a sniper cartridge should be of a classic bottle shape, without belts, so as not to "stick" in the chamber, the cartridge worked in a wide temperature range - both in heat and cold, equally well.
A cartridge case for such cartridges is needed with a reduced flange in the 21st century (now the first quarter of the 21st century is coming to an end) in order to design sniper rifles with compact and lightweight bolt groups, or self-loading sniper rifles, as I described above .
Gauges for sniper weapons are needed:
7,62 mm (.300th) for shooting up to 1 km inclusive,
8,6 mm (.338th) for firing up to 1,5 km,
9,5 mm (.375th) for shooting at 2+ kilometers.
All cartridges must provide accuracy when shooting from a high-precision sniper rifle less than 1 arc minute.
I would also add a 7 mm sniper cartridge for firing within 1 km, even more accurate than larger calibers.
Total, you need 3 new sniper cartridges of different calibers (+ 1 caliber 7 mm). All with reduced liner flanges. Ordinary and armor-piercing bullets. And release new weapons under them. And you don’t have to buy anything abroad. Not so much really.

... And leave the plywood lodges and upright shutters to enthusiasts of technical creativity

[Hordon33]

Quote: Cowbra

Sniper complex Lynx, developed at TOZ. in the middle of the 90s. The first complex, where they put the ballistic calculator. his TsNIITOCHMASH, specifically - Valera and Oleg led him

The Lynx sniper complex KSK-12-7-M was invented by science fiction writer Dmitry Yanovsky and mentioned in the science fiction novel Rhapsody of Anger. TsKIB SOO developed in 1993 the RMB-93 pump-action gun "Lynx" for arming the employees of the Ministry of Internal Affairs.

[Cowbra]

You will not believe. I read this book. But here is the trouble - AFTER that this SC was holding in his hands. And that his name was Lynx is not a fact. I heard just from one of the developers, but ... And yes, in Grozny this complex was

[Cowbra]

The article is not self-loading. The direct lock is a jamb in military weapons.

I noticed that it’s not self-loading))) And I didn’t understand about the butterfly valve either, just like you. His time is over, now on the field either the bolt should be normal, for a sniper, or self-loading. direct combines the minuses of both without a single plus

[Major_Vortex]

Quote: Cowbra

I noticed that it’s not self-loading))) And I didn’t understand about the butterfly valve either

lousy bolt for military weapons. This is for biathlon, or for hunting expensive weapons for a ragged owner. Not reliable and not the best for precision weapons of sane mass and dimensions.

[Den717]

Quote: Mayor_Vikhr

The direct lock is a jamb in military weapons

But it is quite possible to develop a miniature electric actuator for the shutter. Having kept automation, we will not lose the advantages of a bolt.

[Major_Vortex]

Quote: Den717

But it is quite possible to develop a miniature electric actuator for the shutter.

Paintball already has rifles with motors. They are inexpensive. You can buy and shoot sparrows
The most high-precision sniper self-loading rifles with a traditional gas outlet have a characteristic jamb in firing accuracy, which is visible when shooting at a target. Or when shooting at a distant target, when the boltovik still hits, and self-loading with a hyper-super-duper gas vent at the price of the car smears. To make a gas vent devoid of these shortcomings is real and necessary. Having worked out high-precision solutions on sniper rifles, they will go into machine guns and machine guns. Sitting in the 21st century on the achievements of Russian arms officers from the 19th century is how you can sit out progress and the train will leave forever. And then it remains only to cheek up and make an important appearance

[Den717]

Quote: Mayor_Vikhr

You can buy and shoot sparrows

Do you know what the problem is in the 21st century? You, many progressive commentators except there is nothing. you are like those sparrows that you offer to shoot at, you are only tweeting, but without productive thoughts.

[Major_Vortex]

Quote: Den717

Do you know what the problem is in the 21st century? You, many progressive commentators, except there is nothing. you are like those sparrows that you offer to shoot at, you are only tweeting, but without productive thoughts.

My first comment in the topic about a bolt sniper rifle, this is a ready-made instruction for 80 percent. Make such a rifle and I will show you the same ones, but ready-made ones, which have been produced for more than one year. The cartridge with a reduced flange is also more than 100 years old as it was first developed and used in weapons, now it is widely used. About gas venting is physics and mechanics, and partly similar solutions have also long been in combat weapons that are mass-produced.
If these thoughts are not productive, and you can scribe more productively, then scribe?
Keep about the motor for yourself. I can imagine how the motor in a bolt rifle will turn the shutter. The one who crank will weigh like a rifle, and better in the old fashioned way - with handles

[Den717]

Quote: Mayor_Vikhr

and you can

I did not drink vodka with you, keep yourself within the bounds of decency. Your "instructions" here on the VO product will not give birth, but what did TsNIITOCHMASH answer you? Sent? Well, yes, you "are going to teach old men" (I have not distorted anything?). It is not laziness that will destroy us, we will be destroyed by stupid activity and hopeless arrogance.

[Major_Vortex]

Quote: Den717

I did not drink vodka with you, keep yourself within the bounds of decency.

And who started the tweets? I do not violate any framework, I answered exactly as they asked me a question.

Quote: Den717

and what did TsNIITOCHMASH answer you? Sent?

Here we go again. I "chirp", then "send". I am calm about TSNIITOCHASH. They definitely won't send me. Because I don't offer anything like a motor to move the shutter.

[Den717]

Quote: Mayor_Vikhr

I am calm with regard to TSNIITOCHASH. I definitely won’t send

That is, you do not risk sending your "instructions" to specialists. Well, right. There, as here, you will not think ...

[Major_Vortex]

Quote: Den717

That is, you do not risk sending your "instructions" to specialists. Well, right. There, as here, you will not think ...

Once again, I explain in a popular way that what I wrote above about the bolt sniper rifle is already becoming the norm today and there is nothing that would be "ashamed to show" to specialists. It should be a shame for a "specialist" who does not understand how to make a modern sniper bolt rifle. it sniper bolt rifle. It should be accurate, trouble-free, and as technology develops, it becomes easier, without sacrificing accuracy and accuracy of weapons. This is today. Silent fuse as a desirable option for a sniper rifle. The rest is already there, and that's exactly what is being done. Without upright shutters and plywood boxes that are heavy, they are driven by humidity, temperature changes, etc.

About the self-loading sniper rifle, I wrote in general terms, where the problematic nodes negatively affect the accuracy and accuracy of such weapons, which can be successfully eliminated without increasing the mass of the self-loading sniper rifle. Wrote only about the trunk and the exhaust system. I did not go into the receiver, but there is also a lot of interesting things.

Cartridges with a reduced flange - this is also the present day, allow you to create the most powerful rifle ammunition with a minimum mass of the cartridge and the clothed, and compact bolt group.

In TSNIITOCHAS understand this. Do not understand only in sportoloto

[Den717]

Quote: Mayor_Vikhr

Reduced Flange Chucks

At Tsniitochmash, the economy is also considered a plus to "today". Where to put the billions of 7,62x54 cartridges, where to put the weapons that are sharpened for them, and how long will it take to replace these weapons with another with a new cartridge, to make billions of these new cartridges. All this is multiplied by the problems of modernizing old and building new automated lines for cartridge production. Then some of the SPORTOLOTO ask about the cheaper gas, lower retirement ages, VAT and so on. For reference: the OKSV in the DRA 100 soldiers spent an average of 000 billion rounds of ammunition in 1 year; 3,6 billion were spent in WWII. The most powerful cartridge industry of the USSR produced about 17 billion in a year, today it does not produce even half of that. So just imagine the scale of expenses for such a "trifle" - to change the cartridge for one type of weapon and the caliber for other types. Will you put the loot on the table?

[Major_Vortex]

Quote: Den717

At Tsniitochmash, the economy is also considered a plus to "today". Where to put billions of cartridges 7,62x54

You need to shoot old cartridges at the landfills. So that the soldiers learn to shoot well. Less than 50 rounds a day to ban everyone from shooting But shoot according to the method so that the effectiveness grows. Those cartridges that have been lying around for 70 years in warehouses can already be disposed of, in principle. Who knows what they already have inside. If you start to make a new cartridge now, then less "billions" of old ones will have to be disposed of later. Maybe in warehouses for muskets where bullets are lying around?

[Den717]

Quote: Mayor_Vikhr

Those cartridges that have been lying around for 70 years in warehouses can already be disposed of, in principle.

There are none, but what is shot today for any reason was often kept for up to 40 years. For new cartridges there are some plums about 6x49 developments by NV Dvoryaninov from TsNIITochMash. Once they tried to advance him in the sniper direction and, as they accumulated, to promote him to the machine-gun direction, but the case stalled. However, the test results, too, were not unambiguous, some indicators are better, some are worse than 7,62x54. So, maybe sometime in a more monetary perspective, machine guns in new calibers with a cartridge without a protruding flange will appear, but this will not even be the day after tomorrow. And today our PKM / Pecheneg is recognized as almost the best in its class with a gross cartridge, which means its life will still last. And this is not only my opinion. By the way, the patron itself is not so ancient. Throughout his life he undergoes various changes in the shape of the bullet, core, etc.

[Major_Vortex]

Quote: Den717

There are none, but the fact that today is being shot for any reason was often kept up to 40 years.

I joked about 70 years. We are talking about sniper cartridges. Now they write that under the American .308 Winchester will make weapons for the Moscow Region. Nafik this 70-year-old dedugan? Design a new cartridge of this caliber right away. So that heavy elongated bullets can be used in a cartridge, with a good sleeve for a sniper cartridge according to all the canons of the genre, without any belts, and with a reduced flange. Why this gimor with an old American cartridge, if you can do better and with an eye to the future? 308 Winchester designed an automatic rifle at one time in the United States and went into self-loading and bolted only because it turned out to be a failure for automatic. You need a rifle for the American .300 caliber - immediately do your own, under their bullets, but the cartridge case has its own, modern, with a reduced flange, and taking into account all the features of the climatic zones where this cartridge will be used.

A cartridge with a reduced flange will not be somewhere better, but better. It was simply crookedly planned in the USSR, as we know how, if we could contrive and adapt ourselves to deal with the rubble of the Mosinsky cartridge left after the Second World War. Now snipers are shooting with other ammunition - sniper.

[Den717]

Quote: Mayor_Vikhr

Now they write that under the American .308 Winchester will make weapons for the Moscow Region. Nafik this 70-year-old dedugan?

This Dedugan, in other words 7,62x51 NATO (.308 Winchester is its commercial version), today it is not worth the armament of a potential "partner". It is quite useful to have in your arsenal something that shoots trophy ammunition. By the way, the flange there is what you want.

[Major_Vortex]

Quote: Den717

It is useful enough to have in the arsenal what shoots captured weapons. By the way, the flange there is what you want.

Let it be trophy, but a little bit. And launching your own en masse is even better, as we know how. You can design a European capsule, or you can design an American one. And try to reduce the flange a little more, so that even more light and accurate weapons can be designed for it. We are able to make good cartridges. And at least put bullets imported, at least develop and put your own. This is elementary.

[Den717]

Quote: Mayor_Vikhr

And the flange is still a little try to reduce,

This is to Mr. Semizorov, if he is still the gender of TsNIITochmash.

[Major_Vortex]

Quote: Den717

This is to Mr. Semizorov, if he is still the gender of TsNIITochmash.

The tendency today is to make precise weapons and light. The trend is correct. The flanges of the sleeves are accordingly reduced.

[Den717]

Quote: Mayor_Vikhr

The flanges of the sleeves are reduced accordingly.

The flanges didn’t interfere with either the SVD or the FCT. When urinating under a turban, the main thing is that the tape does not end. And what kind of flange is there - to the bulb ...

[Major_Vortex]

Quote: Den717

The flanges didn’t interfere with either the SVD or the FCT. When urinating under a turban, the main thing is that the tape does not end. And what kind of flange is there - to the bulb ...

So the mosquito shoots and hits. But it is better to lighten the mass of weapons where it does not interfere with the quality of shooting, rather than thinning the barrel and weakening the receiver or the box. And this small flange itself begs for a more compact and lightweight shutter that fits into a lighter receiver. The accuracy and accuracy of weapons will remain at the same level. Mosin in the 19th century did not know about this method, because a cartridge with a reduced flange was invented later.

[Den717]

Quote: Mayor_Vikhr

And this small flange itself begs for a more compact and lightweight shutter,

Yes, you are simply an adherent of the sect of witnesses of the shallow flange !!! You will have a flange, and a small one .... but then.

[Major_Vortex]

Quote: Den717

Yes, you are simply an adherent of the sect of witnesses of the shallow flange !!! You will have a flange, and a small one .... but then.

It's time to start doing in the future. Weapon designers have their hands untied, many new good ideas can be embodied in metal. More modern and high-quality weapons will appear. And for pistols, too, under powerful new cartridges. We also win in the pistol by reducing the sleeve flange. And the .338 caliber under the reduced flange - we win even more than the .300th. This is the evolution of a small arms cartridge. The endless flange cannot be reduced due to the capsule, but so far it is possible. Then metal-plastic sleeves will start or they will come up with something else cool. Titanium will begin to be used and its alloys. But the sleeve will already be in perfect shape - with a reduced flange, bottle-shaped and smooth as a herring from the outside, so that it can climb into the chamber

[Major_Vortex]

Quote: Den717

This grandfather, in other words, 7,62x51 NATO ... By the way, the flange there is what you want.

This is not true. Here is the American 7,62x51 NATO of the 50s of the 20th century, developed by Winchester:

Normal flange.
And here is a cartridge of the same caliber developed in the 2000s, of the same Winchester company, but with a reduced flange:

The gauge is the same, but the flange has decreased. Dedugan did not have such a flange in the 50s of the last century.

[SERGEY SERGEEVICS]

This cartridge to be used rifles is very difficult to find in many cities, and if it has a high price tag. Could then it is better to adapt the rifle to our caliber, which are always on sale.

[Astronaut]

So this is a hunting carbine, the author mixed up

[vnord]

Perspectives. perspectives - there are ORSIS -120 and HANTER for different calibers .. The problem for shooters and hunters is not a high-quality cartridge in these calibers of domestic production, and import due to sanctions is up to ...

[Cowbra]

Quote: Mayor_Vikhr

AR-15 rifles have a thin vent pipe.

[Major_Vortex]

Quote: Cowbra

Quote: Mayor_Vikhr

AR-15 rifles have a thin vent pipe.

For automatic fire, the vent pipe of this rifle is not very good, because it quickly overheats in the very front of it, where the vent pipe is most heated. The second unpleasant moment, if water enters the AR-15 gas exhaust system, then there can also be problems. And making it more thick-walled worsened the accuracy of the AR-15.

Therefore, I proposed a new design of the barrel with 3 symmetrical built-in thin gas vents of circular cross-section, where these problems can be successfully solved even at the stage of designing the barrel by laying the wall thickness of the gas vents of sufficient thickness into the barrel structure. Although the cross-sectional walls of the exhaust gas ducts, where in the hottest part of the wall would be thicker, and closer to the breech section of the barrel, where the powder gases heat the exhaust gas less, the wall thickness of the exhaust ducts decreased. From the final design of the trunk will depend. I can offer various designs of such a barrel, including those with special elements integrated into the barrel structure that improve heat dissipation from the hot core of the barrel and dampen the vibration of the barrel, but do not impair the rigidity and other important characteristics of the barrel.

The barrel in the 21st century, for a high-precision sniper rifle shooting at long distances, can be developed, made more perfect and accurate compared to a conventional round steel barrel, or a round steel barrel with milled longitudinal flutes, as is now available for long-range sniper rifles. And the sniper will shoot even more accurately and further, and the counter sniper will successfully fight the enemy snipers armed with the most modern western sniper rifles

[Major_Vortex]

Gas vents in the trunk array - one turned part from stem steel, the trunk profile in the picture is schematic, for clarity:

[Viktor77]

Quote: Mayor_Vikhr

In order to maintain the rigidity of the barrel and receiver of the rifle,

What a receiver .....

[Hordon33]

Not even the alleged success of this rifle in our market is obvious. The thickness of the barrel indicates positioning as a warmint-carbine (with its length it is not a rifle), but then the manufacturer should consider how to make the product shoot confidently in less than a minute. It was not possible to collect a confident angular minute in the video. It is clear that this product, which looks very good, is unlikely to be sold for 50 thousand rubles. Why TB2-LAW is better than Elk 7-1 carbine (which was positioned as a mass hunting rifle, often collecting a minute pile on the Tula half-shell) is not clear. As soon as the accuracy reaches 0,5 minutes - it makes sense to talk about the Russian warmin carabiner, suitable, including for lovers to hunt foxes from a decent distance, etc.