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| As a result of the unification fo a small arms help in the Soviet Army, the SGMT Gorunov tank machinegun was replaced in 1962 by the PKT Kalashnikov machinegun. The PKT was developed from the PK machinegun. However, given the specifics of the PK combat use, M.T. Kalashnikov incorporated a number of changes: the barrel weight was increased by 1,200 g to ensure more intensive fire, the spring of the guiding piston rod was incorporated to reduce the rocking of the barrel and receiver, the gas regulator was manufactured on the principle of a changing gas section to reduce an excessive accumulation of discharged powder gases in combat compartment, the sighting device was replaced by an optical sight, the butt was removed, electric trigger was incorporated to ensure remotely controlled fire that was attached to the receiver's end plate instead of a butt. Modification of the PK machinegun in 1969 was followed by an upgrading of the PKT that was designated the PKMT. They differ from each other in weight. |
| Caliber, mm | 7,62 |
| Cartridge, model 1908 | 7,62x53R |
| Barrel length, mm | 722 |
| Machinegun length, mm | 1,098 |
| Weight, g barrel machinegun w/o ammunition load |
3,230 10,500 |
| Rate of fire, rds/min | 600-800 |
| Combat rate of fire, rds/min | up to 250 |
| Muzzle velocity, m/s | 855 |
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| PKMT Modernized Tank Machine Gun (1969) | |
|---|---|
| Machinegun weight, w/o ammunition load |
11,705 |
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