Large-caliber rifle SVDK
In the comments on the article about the VSSK sniper rifle, a small controversy arose over the comparison of this sample. weapons with a large-caliber sniper rifle of the SVDK. In my opinion, both samples are completely different classes and the only thing they have in common is that they are both large-caliber. I do not exclude the possibility that there is another rifle with the name of the SVDK, which I do not know about, but nobody enlightened me on this subject. Therefore, there is a good reason to make a short article on this sniper rifle, especially since the weapon, or rather ammunition, is very interesting in its first place. history.
As it is not difficult to guess, the SVDK is an adaptation of the SVD for more effective ammunition, but this does not mean that the adaptation was the simplest. The weapon is a self-loading rifle with automatic, working on powder gases discharged from the barrel, assembled in the classical layout. The butt of the weapon was taken from the SIDS rifle, that is, folding, but at the same time it was wearing a shock-absorbing butt pad with a larger area of contact with the shoulder of the shooter in order to smooth out the impact of recoil when firing. The idea of adapting the SVD under a powerful small-blood ammunition failed miserably. In fact, it was necessary to create in fact a new weapon similar in design to the SVD, but completely recounted, which is not surprising, since the difference in ammunition for both rifles is enormous. If you look at the weapon as a whole, then SVD is easily recognized in it, but only on a scale, which means that a lot of work has been invested in it, because the automation system is only half the battle, but a debugged and calculated automation system is already a finished product.
The barrel of the weapon, the bolt, the whole system of automatic rifle were replaced. The barrel is fixed in the receiver, it is not connected with the forearm, but due to the fact that in the weapon the automation system is implemented through the removal of gunpowder gases from the bore, you can not call it freely even with a big stretch. However, the shooting accuracy is significantly affected by the fact that the weapon forearm does not touch the barrel, and the bipods are fixed on the base rendered forward from the receiver, that is, they also do not touch the barrel of the weapon. Despite this, precision weapons are difficult to call, since its effective range is equal to just 600 meters.
The small distance of effective use of weapons is due to several factors at once, among which are primarily the use of automation, secondly, the thickness of the walls of the weapon’s barrel, in my opinion, the rifle’s inadequate weight, finally the cartridge, all this affects the accuracy of the weapon and in the total gives such not the best result. On the other hand, we should not forget also what goals the designers pursued when creating this rifle. And the main objectives were to maximize the weight of the weapon, with the possibility of effectively defeating the enemy's personnel protected by personal armor. Thus, it turns out that in comparison with other samples with similar characteristics and ammunition, the weapon loses by 100%, but at the same time it copes quite successfully with the tasks that are set for it. In addition, they say that it is quite realistic to shoot 1000 meters from this rifle, clenching teeth, but real. This is how it is cheap, cheerful, reliable and efficient, but, truth, without a reserve, for performing more complex tasks than those that are put before a weapon.
The total length of the weapon with the butt folded out is 1250 millimeters, with the length of the rifle barrel equal to 620 millimeters. The initial speed of a bullet fired from this barrel is 780 meters per second. The weight of the rifle is 6,5 kilogram without ammunition. It feeds weapons from a detachable magazine with an 10 capacity of 9,3x64 cartridges.
This cartridge in my opinion is a very interesting ammunition. First of all, the history is interesting in it, since the path that this cartridge went through before being put into service in the Russian army is very long. It all started in the 1910 year, it was then that Welhelm Brenneke created the 9,3x64 ammunition for the Mauser rifle with a sliding bolt. This cartridge was developed purely as a powerful hunting ammunition and not army. The main competitor of this cartridge was 9,3x62, which naturally won this ammunition, otherwise why would it be created. For a very long time, the cartridge was the favorite ammunition of those who hunted large animals. There were a lot of teddies shot by this ammunition, and in Africa many beasts were slaughtered with this powerful ammunition with a heavy bullet. This cartridge retains its popularity even now, and how many weapons under it were released by various weapon companies could not be counted.
In 1986, the son of the famous designer Blum developed a domestic version of this cartridge, the same for hunting. The bullet of the cartridge weighed 17,3-17,5 gram, the kinetic energy, as well as the speed, did not vary within very large limits - 4760-5130 Joules. A year later, the first batch of these munitions was manufactured, but they went into mass production a little later.
Actually, on the basis of this cartridge and was developed ammunition for a sniper rifle. True, many people believe that it was not the domestic hunting ammunition that was taken as a basis, but foreign, but we will not start a dispute from scratch. One way or another, the civilian cartridge and the combat cartridge are different ammunition.
The bullet of the live cartridge 9,3х64 has a weight of 16,6 grams, it has a steel core. In the trunk of the SVDK, this bullet accelerates to a speed of almost 800 meters per second, respectively, its kinetic energy is somewhere around the 5000 Joule. The ammunition is designed primarily for the effective destruction of enemy personnel, protected by means of individual armor protection, as well as firing on unarmored vehicles. At a distance in 100 meters, the bullet of the cartridge 9,3х64 in 80% of shots pierces a sheet of steel measuring one centimeter thick.
In 2006, this cartridge was adopted along with the SVDK rifle. The designation of this munition received 9СН, index 7НХNUMX.
Thus, it is safe to say that the SVDK and the 9СН cartridge cannot be compared with the .338 Lapua Magnum cartridge and the weapon under it at all. And this is not at all due to the fact that domestic ammunition and rifle lose in such a comparison, but because the requirements of not high-precision long-range sniper weapons were laid in the design of our weapon, but quite different. You can often find a negative opinion about this weapon, but no one scolds the Glock pistol for the fact that it cannot hit the target at a distance of 1000 meters. So why then make demands that are clearly above the challenges facing the weapon?
Well, how much this rifle is comparable to a large-caliber sniper complex with a small unmasking action “Exhaust”, let everyone decide for himself.
As it is not difficult to guess, the SVDK is an adaptation of the SVD for more effective ammunition, but this does not mean that the adaptation was the simplest. The weapon is a self-loading rifle with automatic, working on powder gases discharged from the barrel, assembled in the classical layout. The butt of the weapon was taken from the SIDS rifle, that is, folding, but at the same time it was wearing a shock-absorbing butt pad with a larger area of contact with the shoulder of the shooter in order to smooth out the impact of recoil when firing. The idea of adapting the SVD under a powerful small-blood ammunition failed miserably. In fact, it was necessary to create in fact a new weapon similar in design to the SVD, but completely recounted, which is not surprising, since the difference in ammunition for both rifles is enormous. If you look at the weapon as a whole, then SVD is easily recognized in it, but only on a scale, which means that a lot of work has been invested in it, because the automation system is only half the battle, but a debugged and calculated automation system is already a finished product.
The barrel of the weapon, the bolt, the whole system of automatic rifle were replaced. The barrel is fixed in the receiver, it is not connected with the forearm, but due to the fact that in the weapon the automation system is implemented through the removal of gunpowder gases from the bore, you can not call it freely even with a big stretch. However, the shooting accuracy is significantly affected by the fact that the weapon forearm does not touch the barrel, and the bipods are fixed on the base rendered forward from the receiver, that is, they also do not touch the barrel of the weapon. Despite this, precision weapons are difficult to call, since its effective range is equal to just 600 meters. 
The small distance of effective use of weapons is due to several factors at once, among which are primarily the use of automation, secondly, the thickness of the walls of the weapon’s barrel, in my opinion, the rifle’s inadequate weight, finally the cartridge, all this affects the accuracy of the weapon and in the total gives such not the best result. On the other hand, we should not forget also what goals the designers pursued when creating this rifle. And the main objectives were to maximize the weight of the weapon, with the possibility of effectively defeating the enemy's personnel protected by personal armor. Thus, it turns out that in comparison with other samples with similar characteristics and ammunition, the weapon loses by 100%, but at the same time it copes quite successfully with the tasks that are set for it. In addition, they say that it is quite realistic to shoot 1000 meters from this rifle, clenching teeth, but real. This is how it is cheap, cheerful, reliable and efficient, but, truth, without a reserve, for performing more complex tasks than those that are put before a weapon.The total length of the weapon with the butt folded out is 1250 millimeters, with the length of the rifle barrel equal to 620 millimeters. The initial speed of a bullet fired from this barrel is 780 meters per second. The weight of the rifle is 6,5 kilogram without ammunition. It feeds weapons from a detachable magazine with an 10 capacity of 9,3x64 cartridges.
This cartridge in my opinion is a very interesting ammunition. First of all, the history is interesting in it, since the path that this cartridge went through before being put into service in the Russian army is very long. It all started in the 1910 year, it was then that Welhelm Brenneke created the 9,3x64 ammunition for the Mauser rifle with a sliding bolt. This cartridge was developed purely as a powerful hunting ammunition and not army. The main competitor of this cartridge was 9,3x62, which naturally won this ammunition, otherwise why would it be created. For a very long time, the cartridge was the favorite ammunition of those who hunted large animals. There were a lot of teddies shot by this ammunition, and in Africa many beasts were slaughtered with this powerful ammunition with a heavy bullet. This cartridge retains its popularity even now, and how many weapons under it were released by various weapon companies could not be counted.In 1986, the son of the famous designer Blum developed a domestic version of this cartridge, the same for hunting. The bullet of the cartridge weighed 17,3-17,5 gram, the kinetic energy, as well as the speed, did not vary within very large limits - 4760-5130 Joules. A year later, the first batch of these munitions was manufactured, but they went into mass production a little later.
Actually, on the basis of this cartridge and was developed ammunition for a sniper rifle. True, many people believe that it was not the domestic hunting ammunition that was taken as a basis, but foreign, but we will not start a dispute from scratch. One way or another, the civilian cartridge and the combat cartridge are different ammunition.The bullet of the live cartridge 9,3х64 has a weight of 16,6 grams, it has a steel core. In the trunk of the SVDK, this bullet accelerates to a speed of almost 800 meters per second, respectively, its kinetic energy is somewhere around the 5000 Joule. The ammunition is designed primarily for the effective destruction of enemy personnel, protected by means of individual armor protection, as well as firing on unarmored vehicles. At a distance in 100 meters, the bullet of the cartridge 9,3х64 in 80% of shots pierces a sheet of steel measuring one centimeter thick.
In 2006, this cartridge was adopted along with the SVDK rifle. The designation of this munition received 9СН, index 7НХNUMX.
Thus, it is safe to say that the SVDK and the 9СН cartridge cannot be compared with the .338 Lapua Magnum cartridge and the weapon under it at all. And this is not at all due to the fact that domestic ammunition and rifle lose in such a comparison, but because the requirements of not high-precision long-range sniper weapons were laid in the design of our weapon, but quite different. You can often find a negative opinion about this weapon, but no one scolds the Glock pistol for the fact that it cannot hit the target at a distance of 1000 meters. So why then make demands that are clearly above the challenges facing the weapon?
Well, how much this rifle is comparable to a large-caliber sniper complex with a small unmasking action “Exhaust”, let everyone decide for himself.
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