Topic summary
14.5 × 114 mm
Source: Post WWII Ammunition Russian Ammunition Page
The 14.5×114 mm (.57 calibre) is a heavy machine gun and anti-materiel riflecartridge used by the Soviet Union, the former Warsaw Pact, modern Russia, and other countries.
It was originally developed for the PTRS and PTRDanti-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.