firearms

   Russia

Cartridges Russia

Special bullets

Special captive-piston cartridges

Special captive-piston cartridges

    The application of combined arms silencer weapons provides available cartridges with reduced (to subsonic) muzzle velocity and muzzle silencer for it. An example is submachine gun AKM with PBS-1 and cartridge 7.62 US.
Pistols and submachine guns under standard pistol cartridges for silent shooting have to be equipped by muzzle silencer. All this leads to size and mass of arms increasing that is not always acceptable for special operations.
The principle of silent shooting such as cutoff powder gases in cartridge case is used since 1960s both in the USSR and Russia. According to this principle several types of cartridges and appropriate silent weapons were created.

 

7.62 mm cartridge PZAM

7.62 mm cartridge PZAM
7.62 mm cartridge PZAM

     
  General properties of cartridges PZAM

Weight of a cartridge, g.................................................15
Weight of a bullet, g........................................................8
Length of a cartridge, mm..............................................77
Muzzle velocity, m/s.....................................................200
 
 

    Special cartridge PZAM (PZAM — cartridge «snake» improved, modernized) was created as a further development of cartridges PZ and PZA in the middle of 1960th. The cartridge was intended for special pistol S-4M shooting and ensured hidden defeating personnel target at range up to 25 m.
     Shooting quietness and flameless is provided by cartridge case cutoff powder gases due to special part such as piston-pusher.
     Powder gases actuating piston-pusher give an initial acceleration for bullet when shooting. Moving forward the piston is stuck in forward part of cartridge case blocking up powder gases which are gradually bleed through macroscopic gaps.
     7.62 mm bullet of cartridge 57-N-231 for AKM (ordinary bullet with steel core) is used en the cartridge The cartridge case walls are very durable for ensuring weapon safety and reliability.
     The cartridge has not distinctive painting.

The device is 7.62 mm cartridge PZAM
The device is 7.62 mm cartridge PZAM

The device is 7.62 mm cartridge PZAM
The device is 7.62 mm cartridge PZAM

 

7.62 mm cartridge SP3

7.62 mm cartridge SP3
7.62 mm cartridge SP3

     
  General properties of cartridges SP 3

Weight of a cartridge, g.................................................15
Weight of a bullet, g.....................................................7.9
Length of a cartridge, mm..............................................52
Muzzle velocity, m/s.....................................................150
 
 

    Cartridge SP3 (SP - special cartridge, the third sample) was created at FSUE TSNIITOCHMASH at the end of 1960th for silent pistol dimensions reducing. The cartridge was intended for special small-sized pistol MSP and special scout knife NRS shooting and ensured hidden defeating personnel target at range up to 25 m.
     Shooting quietness and flameless is provided by cartridge case cutoff powder gases. Piston-pusher is made like telescopic in contrast to candge PZAM. Cartridge SP3 resembles 7 62m cartridge 1943 model on its external shape but has smaller dimensions 7.62 mm bullet of cartridge 57-H-231 for AKM is used in SP3 like cartridge PZAM.
     The cartridge has not distinctive painting.

 

The device is 7.62mm cartridge SP3
The device is 7.62mm cartridge SP3

 

7.62 mm pistol cartridge SP4

7.62 mm pistol cartridge SP4
7.62 mm pistol cartridge SP4

     
  General properties of cartridges SP 4

Weight of a cartridge, g.................................................23
Weight of a bullet, g......................................................10
Length of a cartridge, mm..............................................42
Muzzle velocity, m/s.....................................................200
 
 

    Cartridge 7.62 SP4 (SP special cartridge, the fourth sample) with cutoff powder gases en cartridge case was developed at FSUE TSNIITOCHMASH in the middle of 1980s instead of cartridges PZ, PZA, PZAM and SP3 with a view to creating small dimensions and weight self-loading silent pistol. Production of cartridge was mastered at Klimovsk Specialized Ammunition Plant.
     The cartridge SP4 bullet is a steel cylinder with pressed leading belt The bullet completely put in cartridge case when packaged. A short piston-pusher is located behind the bullet and closes powder gases in cartridge case when shooting. The piston does not stick out cartridges dimension after shooting and ensures reliable operation of the automatic pistol.
     7.62 cartridge SP4 is designed for special self-loading pistol PSS, special scout knife NPS-2 and a revolver OTs-38 shooting and ensured hidden defeating personnel target at range up to 25m. Thereby it is ensured a high level silencing of shot sound.
     The cartridge has not distinctive painting.

The device is 7.62-mm pistol cartridge SP4
The device is 7.62-mm pistol cartridge SP4

 

7.62 mm pistol cartridge 7N36

7.62 mm pistol cartridge 7N36
7.62 mm pistol cartridge 7N36

     
  General properties of cartridges 7N36

Weight of a cartridge, g.................................................23
Weight of a bullet, g......................................................10
Length of a cartridge, mm..............................................42
Muzzle velocity, m/s.....................................................200
 
 

    The cartridge 7N36 was created as an analogue of 7.62 cartridge SP4 at Design Bureau automatic production lines in the beginning of 2000 s. The development purpose was technological production increasing Production cartridge was mastered at Tula Cartridge Works.
     The bullet of cartridge 7M36 unlike cartridge SP4 is bimetallic shell in which steel core similar to core bullet cartridge SP4 is placed. A bullet conducting along barrel grooves is provided due to the thickened bullet shell in a forward part but not by lead belt or lead-shirts. In other respects the cartridge 7N36 design repeats 7.62 cartridge SP4.
     7N36 cartridge is designed for special self-loading pistol PS5, special scout knife NPS-2 and a revolver OTs-38 shooting and ensured hidden defeating personnel targets at range up to 25m. Thereby it is ensured a high level silencing of shot sound as in SP4 cartridge.
     The cartridge has not distinctive painting.

The device is 7.62-mm pistol cartridge 7N36
The device is 7.62-mm pistol cartridge 7N36