The 14.5×114mm (.57 calibre) is a heavy machine gun and anti-materiel rifle cartridge used by the Soviet Union, the former Warsaw Pact, modern Russia, and other countries.
It was originally developed for the PTRS and PTRD anti-tank rifles, and was later used as the basis for the KPV heavy machine gun that formed the basis of the ZPU series anti-aircraft guns that is also the main armament of the BTR series of armoured personnel carriers from the BTR-60 to the BTR-80 and for heavy anti-materiel sniper rifles.
The technical characteristics may have minor differences according to the different manufacturers of the given product. The manufacturers reserve the right to make changes to the specified parameters.
Bullet diameter: 14.88 mm
Land diameter: 14.50 mm
Neck diameter: 16.5 mm
Shoulder diameter: 25.50 mm
Maximum pressure: 360 MPa
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