14.5 × 114 mm

14.5×114mm
A 14.5 × 114 mm cartridge
TypeAnti-tank rifle, anti-materiel rifle, heavy machine gun
Place of originSoviet Union
Service history
In service1941–present
Used bySoviet Union and successor states
WarsWorld War II
Soviet–Afghan War
War on Terror
First Libyan civil war
Syrian Civil War
and many other conflicts
Production history
Designed1939
Specifications
Case typeRimless, bottleneck
Bullet diameter14.88 mm (0.586 in)
Land diameter14.50 mm (0.571 in)
Neck diameter16.5 mm (0.65 in)
Shoulder diameter25.50 mm (1.004 in)
Base diameter26.95 mm (1.061 in)
Rim diameter26.95 mm (1.061 in)
Rim thickness2.5 mm (0.098 in)
Case length114 mm (4.5 in)
Overall length155.80 mm (6.134 in)
Case capacity42.53 cm3 (656.3 gr H2O)
Rifling twist455 mm (1 in 17.91 in)
Maximum pressure360 MPa (52,000 psi)
Ballistic performance
Bullet mass/type Velocity Energy
59.7 g (921 gr) MDZ HEI 1,000 m/s (3,300 ft/s) 29,850 J (22,020 ft⋅lbf)
60 g (926 gr) ZP Inc.-T 1,000 m/s (3,300 ft/s) 30,000 J (22,000 ft⋅lbf)
64 g (988 gr) B-32 API 1,000 m/s (3,300 ft/s) 32,000 J (24,000 ft⋅lbf)
64.4 g (994 gr) BS AP 1,000 m/s (3,300 ft/s) 32,200 J (23,700 ft⋅lbf)
66.5 g (1,026 gr) KKV 1,000 m/s (3,300 ft/s) 33,250 J (24,520 ft⋅lbf)
Test barrel length: 1350 mm (53 inches)
Source(s): Post WWII Ammunition Russian Ammunition Page

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.

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