Pully Kacheeva - the future of ammunition

12
According to the generally accepted opinion manual firearms weapon has long been at a dead end, and he has nowhere to develop. Indeed, all possible variations of the automation scheme have already been enumerated by designers at the end of the 19th and early 20th centuries, and it is rather difficult to come up with something fundamentally new, it is even more difficult to implement it massively and efficiently at an affordable price, otherwise the weapon will not get widespread, as it is repeatedly was. Thus, it turns out that you need to wait until someone makes compact versions of lasers, blasters, Gaus guns and other weapons from fantastic books, or rather compact sources of energy for these weapons. But in fact, there is still much to develop. Therefore, all of the above will leave for the cinema.

Speaking about the development of weapons, for some reason they always forget about ammunition to them, and in fact the cartridge has always been the basis for any weapon and determined its basic parameters. Of course, the most well-developed cartridge will not be able to show good results when using a barrel made of a water pipe, but an ideal weapon will show far from the best results if you charge it with poor quality cartridges. It turns out that modern firearms already, if they did not reach their ceiling, came very close to it, but for some reason they do not improve the cartridges - although the weapon is being developed for a cartridge.

Of course, the cartridges are developing too, but for some reason most manufacturers rest on classic designs. Ideally, they strive to create a cartridge that can be used in the existing and common samples, with minimal adaptation of these samples. Nevertheless, I believe that the creation of new, more advanced ammunition can significantly advance the effectiveness of handguns and that any costs are justified.

Naturally, the work on the development of new ammunition is underway, but since everything depends on the financial issue, these works are more likely a reserve for the future, and not for mass production — they are not yet ready to lay out money for higher characteristics of ammunition.

Since the cartridge can be divided into four components (primer, cartridge case, powder charge and bullet), the designers work on them. The most obvious option to improve the performance of the cartridge is to work with the powder charge, since it is his gases that, when burned, set the speed of the bullet, and the higher the speed, the greater the energy of the projectile. Various variations with gunpowder have already given their maximum results, because in the first half of the twentieth century, work began on the replacement of gunpowder. They didn’t shove them into the liner and didn’t force them to burn ... There were even such exotic options, where instead of gunpowder two gases were used that ignited when combined, but, as we see, it didn’t bring any special results and we use the same powder. With a cartridge cartridge cap, everything is ambiguous. On the one hand, this is the simplest device, the main task of which is to ignite the powder, so that it doesn’t seem to affect the characteristics of the ammunition. But this is only when viewed superficially. We can give the following example of how the capsule can affect the characteristics of an ammunition. If two tracks are made of gunpowder on a flat surface, one is set on fire from one side and the other from the middle, it is obvious which of them will burn faster. Accordingly, the faster the whole thing burns, the faster the powder gases will form, pumping pressure in the barrel, on which all the same speed of the bullet directly depends. True, in the cartridge itself this advantage will not be as significant as can be seen by removing the powder charge from it and striking the primer. So a really significant result will be only with those cartridges where the powder charge is large enough, that is, in cartridges with a large volume of the sleeve or if the sleeve is thin and long. Variations with a sleeve are basically attempts to make the cartridges cheaper to produce. At the moment, the use of polymers can be considered the only justified option. The options for caseless cartridges do not have the advantages over similar ammunition with a sleeve, they require weapons of non-standard design. At the same time, they are cheaper and make it possible to reduce the weight of cartridges, which is important, especially for machine guns, or rather machine gunners, only the cost of new weapons for these munitions covers these positive points.

So only the bullet remains, but ideally, of course, the entire structure should be completely modernized to maximize the performance of the ammunition. Actually on the bullets and work mainly all large weapon companies, changing the materials of the bullet, applying a coating of molybdenum and so on, but, practically, without changing the shape of the bullet.

But not only large weapon companies are busy working on such projects, and we have not translated yet and we have designers who are able to make a new ammunition alone, surpassing existing ones in their characteristics. So, Vasily Ivanovich Kacheev not only was able to improve the performance of bullets, and accordingly ammunition, but also developed a different production technology, which is simpler and more accurate than what Western designers offer in similar projects.

The main idea, which is used in new ammunition, is to reduce the friction force of the bullet surface on the bore, as well as on the air during its flight. The idea is not new, goes back in the fifties of the last century, it was then that the first studies on this issue began, which are still ongoing and quite productive. Known KTW bullet coated with Teflon. Nevertheless, almost everything depends on the production technology of Teflon coating, which is quite complex and expensive, because such ammunition, although mass-produced, is quite expensive. It is with the increase in bullet speed that all those bikes that were widespread in the last century are connected, that a bullet with Teflon coating can penetrate any body armor. In fact, the armor-piercing properties of a bullet do increase, due to an increase in its speed, so there is some truth in this, but this is just any body armor, any bullet is of course a figment.

Consider the options of ammunition, which offers Vasily Ivanovich, as well as, if possible, comparable to ammunition having a Krupp form bullets (Krupp) sample 1881 of the year.

First of all, consider the 7,62 × 39mm hunting cartridges of gross production. After deposition of a two-layer coating on gross bullets containing an aluminum alloy underlayer, and on top of it a layer of fluoroplastic-4, which is also known under the trademark Teflon. Further, the designation Al + PTFE for such a coating will be used. The result of the shooting of such experienced hunting cartridges was obtained not the most impressive in accuracy - it grew by only 5,7%. This, of course, is also a result, but it will not be enough. Although we should not forget that the cartridges of gross production, and some companies, when the result of a three percent improvement in accuracy, scream at the top of their heads about their uniqueness and genius.

But in an ideal ammunition, not only accuracy is important, but also the time of approach to a moving target. The reduction of this value is quite possible by the Al + PTFE coating. Fluoroplastic-4, in its essence, is used here as a dry lubricant, helping the pool to pass the bore of the weapon with less friction and, consequently, with greater speed. The air resistance in flight of the bullet can also not be discounted, since this factor seriously affects the same speed of the bullet (flight time).

Next, the designer suggested for large-caliber sniper rifles. its version of the bullet, which is recognized by the invention.
Monolithic bullet design V.I. Kacheeva - a combination of balls and transitional volumes of such a shape, which ensure the mixing of the center of gravity to the bullet tip. In addition, the diameter of the head is equal to the caliber (the size of the trunk along the fields). The bullet is centered by the headline strictly along the axis of the barrel bore - thus eliminating the bullet misalignment - the "slanting" of the bullet along the cuts (as the professional arrows say).

The main feature of his bullets Vasily Ivanovich distinguishes not their armor-piercing properties, but the fact that they will be cheaper in production than bullets of classical designs. The designer proposes to apply the well-known technology of cross-wedge rolling in the manufacture of their bullets. It should be noted that the bullets that will be manufactured using the cross-wedge rolling technology have a smaller weight dispersion compared to cores that are machined on automatic lathes, which is especially important for ammunition used in high-precision weapons. The technology was developed at one of the institutes of the National Academy of Sciences of Belarus.

The technology was tested in the manufacture of steel cores of shell bullets - during the Soviet era. The coating of aluminum and fluoroplast-4 designer also offers a very original patented method - steel bristle brush, which is environmentally friendly - compared with the electrochemical method (electroplating).

Plus, the speed of applying these coatings increases many times, which reduces the cost of bullets. The Al + PTFE coating made using this technology is a replacement for either a sub-caliber hunting bullet or a shell on a Krup-shaped bullet of a model 1881 of the year. Thus, we get more “fast”, cheap and accurate bullets than those that are now common.

We will consider this the first introductory article. In the following, we will try to disassemble the results of the shooting below of the depicted experienced hunting cartridge containing a hardened bullet with an Al + PTFE coating and a composite powder charge of the development of the Ph.D. M.A. Sour - on the plate of the bulletproof vest.



Pully Kacheeva - the future of ammunition
12 comments
Information
Dear reader, to leave comments on the publication, you must sign in.
  1. +6
    1 February 2013 08: 30
    Interesting article. Thank.
  2. Frigate
    +2
    1 February 2013 08: 37
    Interesting article. To the author plus. it turns out the better we use the charge, the better the speed. and thanks to the geometry of the new bullets, it’s even better, but the result will be stronger, since the kinetic energy is high.
    1. +1
      1 February 2013 15: 21
      Well, it’s rather a plus for the designer who developed these munitions. If he hadn’t come out independently on the resource, then this article wouldn’t exist until the ammunition became common.
      1. +1
        1 February 2013 18: 08
        I am amazed that in the field of ammunition you can still invent something revolutionary.
        Bravo Kacheev Vasily Ivanovich!
        1. 0
          1 February 2013 20: 47
          Quote: omsbon

          I am amazed that in the field of ammunition you can still invent something revolutionary.
          Bravo Kacheev Vasily Ivanovich!


          Yes, in the cartridges there is just an "unplowed field" ... and a lot of ideas.

          Question - Why does a howitzer shell at an initial speed of 690 m / s fly by 15,5 km. And the AK74 bullet at an initial speed of 900 m / s is only 3,5 km ??

          Well, yes .. Because the bullet from the AK74 very quickly loses speed.
          Here in the "triangle" - Muzzle velocity / caliber / mass of a bullet, you can do a lot of things.
          It is a pity that it is not possible to break through a sniper rifle with a heavy and small-caliber bullet in the factories. But such a rifle has a bullet speed at a distance of 2,5 km still 600 m / s! and this with a bullet weight - 30 - 34 grams! That is, it breaks through the armor of an armored personnel carrier easily! Yes, with gentle cuts, the spread of the bullet is very small.
          Of course, the 14,5 cartridge is very good .. But for sniper rifles it has a lot of shortcomings. And the aimed battle on 2,5 km is too tough for this cartridge. sad
          1. anomalocaris
            0
            3 February 2013 16: 44
            Quote: ammunition
            It is a pity that it is not possible to break through a sniper rifle with a heavy and small-caliber bullet in the factories. But such a rifle has a bullet speed at a distance of 2,5 km still 600 m / s! and this with a bullet weight of 30 - 34 grams!

            1) Small-caliber is how much?
            2) What is the bullet made of at such a mass?
            3) Where will you give the recoil momentum?
    2. Chebyran
      0
      1 February 2013 21: 57
      The bottom line is to cover the bullet with a teflon coating, which will increase its speed, well, and change the bullet. The illustration shows that the sleeve remained the same, i.e. the charge will not change and, accordingly, the return will also not change
  3. avt
    +3
    1 February 2013 09: 50
    At first glance, it is not as catchy as if a weapon were being considered. But without a cartridge, any weapon is a beautiful piece of iron. Cognitively +, we look forward to continuing with the results good .
    1. +2
      1 February 2013 10: 28
      The main advantage of cartridges is that they can already be used in existing samples)
      1. avt
        +2
        1 February 2013 10: 47
        Quote: scrabler
        The main advantage of cartridges is that they can already be used in existing samples)

        That's it . Everyone enthusiastically discusses various schemes of weapons, but that the characteristics can be improved by bullets, gunpowder, well, in general, due to the cartridge, they are relegated to the background. But this is no less serious, important and difficult task for the designer, but less noticeable. And the decisions here are sometimes no less beautiful.
        1. anomalocaris
          0
          3 February 2013 16: 51
          In classic rifled weapons, improving something is very problematic. And this is connected not only with the characteristics of the cartridge, but primarily with the tensile strength of existing structural materials.
          You can increase efficiency by percent, but it will be very expensive, but no qualitative leap is expected.
  4. CCA
    CCA
    +2
    1 February 2013 10: 24
    The main feature of his bullets Vasily Ivanovich emphasizes not their armor-piercing properties, but the fact that they will be cheaper in production than bullets of classical designs.
    And this is also not an unimportant effect, especially in combination with improved characteristics ... good
  5. OLe OLeg
    +1
    1 February 2013 12: 35
    The cheaper the weapon, the easier it is for the country to live.
  6. +2
    1 February 2013 12: 50
    The photograph at the end of the article is essentially a modified Blondo. France, the second world. The French resistance successfully penetrated the car engine blocks.
    1. +3
      1 February 2013 14: 03
      Not really, the original Blondeau has belts of soft metal for tight contact with the bore of the bullet, its derivatives generally use a plastic "cup", which reduces the caliber and weight of the projectile itself. In this case, a tight fit of the bullet to the bore is achieved thanks to the coating of aluminum and fluoroplastic-4, that is, these bullets are cheaper and easier to manufacture. Conversely, a higher speed is added here, although in smooth-bore bullets this is not as noticeable as in bullets for rifled weapons.
      1. +1
        1 February 2013 15: 04
        Thank you Kirill for taking into account the opinion of the "ungrateful" readers. we are waiting for the continuation of the topic
        1. +5
          1 February 2013 15: 16
          No, well, writing an article is still half the battle, you also need to track how it "went". Especially when you write an article at night, you can unwittingly mess up, so any corrections and additions I personally only welcome smile Plus, you can get a lot of information in the comments, which you didn’t know, but it’s impossible to know everything, but nobody wants to do it. wink And the readers are grateful and, more importantly, adequate)
      2. anomalocaris
        +2
        1 February 2013 18: 06
        Blondo has lead belts for passing through the chock. The sub-caliber bullet is already from a completely different opera, and the most important and difficult part in its production is the pallet.
        That's just in the smooth-bore version, this increase is maximally noticeable. In principle, for a conventional hunting rifle, you can get a 1,5-2-fold increase in the initial speed.
  7. +1
    1 February 2013 12: 51
    Those. such a bullet allows you to shift the center of gravity exactly in the middle of its length?
    1. +1
      1 February 2013 13: 58
      On the contrary, the center of gravity is shifted forward in bullets of caliber 12,7 millimeters. You can even talk about high-precision large-caliber cartridges, which will be clearly in demand, since they do not require a separate type of weapon for themselves + we add increased armor-piercing and higher speed, which will facilitate the firing at moving targets.
    2. anomalocaris
      +1
      1 February 2013 18: 13
      Ideal bullet balance is the center of gravity 1/3 the length of the head. This is the balance of bullets of the "arrow" type (Minier, Neisler, Brennecke, etc.).
  8. +3
    1 February 2013 12: 51
    Interesting. Bullets with a center of gravity shifted to the bow will definitely have a higher accuracy at medium and long distances due to a decrease in the bullet’s derivation. Who cares what is derivation, here is the link- http://ru.wikipedia.org/wiki/%D0%94%D0%B5%D1%80%D0%B8%D0%B2%D0%B0%D1%86 % D0% B8% D1
    %8F_%28%D0%B2%D0%BE%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5_%D0%B4%D0%B5%D0%BB%D0%BE%29

    In my opinion, the author should also add a mention of derivation and obturation, the so-called bottom suction effect. These things also significantly affect the main performance characteristics of the bullet.
    1. +1
      1 February 2013 13: 55
      I did not want to overload the article smile All these questions will be discussed in subsequent materials, where it will be possible to get acquainted with each of the bullets separately. smile
      1. anomalocaris
        0
        3 February 2013 16: 53
        I would like to soon ...
  9. +4
    1 February 2013 14: 10
    That's what I think. The bullets are really good, you need to draw attention to this invention, otherwise everything will turn out as always - done and forgotten sad Maybe it's worth "spinning" these options for bullets, spreading information throughout the Runet, suddenly they will pay attention? Moreover, we do not have a domestic large-caliber really high-precision ammunition, but oh, how we need it. And the fact that cartridges will become cheaper in production with an increase in their characteristics is also clearly not a minus. So we kindly ask you to raise the "noise" about this, through the pages in the social. networks, LJ and so on. It's time to restore primacy in firearms. soldier We have our own Barretts, but they don’t have any support, we need support at least informational.
    1. Green 413-1685
      +2
      1 February 2013 17: 15
      There is such a question, who is the patent holder, where and how the tests were carried out, how is it all documented. If everything is serious, then try to write to the Ministry of Defense in the name of the Chief, or in general to the administration in the name of Himself. Against the background of all these fashionable trends in the search for breakthrough technologies, it can take a ride. Unless, of course, there is a competent justification from those. calculations, and not a magazine a la "young technician". Unfortunately, similar issues in our country can be solved only by a strong-willed decision from the very top, and through the Internet, excuse me like shouting into a garbage chute, there is little sense.
      1. +1
        1 February 2013 22: 37
        Everything is designed as it should be, but no one is interested in these munitions. Well, at least until recently. Maybe now something will change smile
  10. Lee
    Lee
    0
    1 February 2013 15: 39
    Over the past 100 years, they have probably proposed changing the bullet fundamentally thousands of times, but they have not yet come up with anything better than the classic bullet for mass small arms.
    But the idea of ​​a polymer shell is very interesting, a lot of advantages. Here, it seems, the news about polymer belts for artillery shells still slipped.
    True, there is a nuance - at high temperatures, fluoroplastic releases very toxic compounds.
    1. anomalocaris
      0
      1 February 2013 18: 15
      Quote: LEE
      But the idea of ​​a polymer shell is very interesting, a lot of advantages. Here, it seems, the news about polymer belts for artillery shells still slipped.

      Why is it slipping? For 25 years, such shells have been in service ...
      1. Lee
        Lee
        0
        1 February 2013 21: 25
        Quote: anomalocaris
        Why is it slipping? For 25 years, such shells have been in service ...

        We have?
        1. anomalocaris
          +1
          2 February 2013 09: 21
          I don’t know about us ... Some authorities are very fond of secreting everything ... I will never forget: in the Combat Manual there is a drawing of a trench for some product (we have not seen it in the photographs), and then it turned out that it was banal " Metis "...
  11. 0
    1 February 2013 16: 45
    very interesting. +
  12. mazdie
    0
    1 February 2013 21: 57
    How much you learn, definitely +
  13. Chern
    0
    3 February 2013 01: 33
    some frichestvo, IMHO.
    application of aluminum and fluoroplastic with a steel brush - marvelous pearl
    1. anomalocaris
      0
      3 February 2013 16: 47
      Well no. This is quite possible. That's just the question of ensuring a constant layer thickness.
  14. +4
    4 February 2013 19: 30
    I am a little familiar with the results of the shooting. There is nothing outstanding - neither in accuracy, nor in improving aerodynamic qualities. The author is not familiar with the elementary laws of ballistics. In addition, it mistakenly believes that the coating reduces aerodynamic drag. Friction of the surface against the surface - maybe (but the possibility of material residues on the barrel walls has not been investigated), but the surface of the bullet against the air - there are different laws of friction. The increase in the size of the cartridge is another drawback. An increase in the length of a bullet when using a rifled weapon will lead to a deterioration in accuracy due to an imbalance of masses, which cannot be eliminated technologically. It is much easier to make sub-caliber bullets with aerodynamic stabilization, like JSC NPO Pribor for 30 mm cannons 2A42 and 2A72. The lateral aerodynamic load increases and, accordingly, the speed drop along the distance decreases
  15. 0
    April 19 2013 16: 48
    For rifled weapons use arrow-shaped bullets and even with this option fixation? Will not tear the rim when he goes on the cuts?
    Well, the very principle of armor-piercing for bullets is a little different - an all-steel blank penetrates worse than a steel core compressed with lead. Again, such a "bullet" would be wild to ricochet.
  16. Alexander Kirov
    0
    April 19 2013 23: 35
    There is one more chip-LMW, liquid propellants. A shell and a cartridge without a sleeve. The sleeve is the combustion chamber itself, the chamber. The injection of LMF into the combustion chamber, the capsules themselves in the pool, mechanical ignition. Actually, you can take three times as many shells into the tank .
  17. Doctor.soldier
    0
    28 January 2015 14: 09
    Moreover, comrades, read Kacheyev’s article right there at his leisure, how he pours mud on AK and the Kalashnikov concern because he personally didn’t recognize him, Kacheyev .. It's a shame! I do not believe any of his words after that.