|Type||Anti-tank rifle, Heavy machine gun|
|Place of origin||Soviet Union|
|In service||1941 to present|
|Used by||Soviet Union and successor states|
|Wars||WWII, Soviet war in Afghanistan|
|Bullet diameter||14.88 mm (0.586 in)|
|Neck diameter||16.5 mm (0.65 in)|
|Shoulder diameter||25.50 mm (1.004 in)|
|Base diameter||26.95 mm (1.061 in)|
|Rim diameter||26.95 mm (1.061 in)|
|Rim thickness||2.5 mm (0.098 in)|
|Case length||114 mm (4.5 in)|
|Overall length||155.80 mm (6.134 in)|
|Case capacity||42.53 cm³ (656 gr H2O)|
|Rifling twist||455 mm (1 in 17.91 in)|
|Maximum pressure||360 MPa (52,000 psi)|
|59.6 g (920 gr) BZT API-T||1,000 m/s (3,300 ft/s)||29,800 J (22,000 ft·lbf)|
|59.7 g (921 gr) MDZ HEI||1,000 m/s (3,300 ft/s)||29,850 J (22,020 ft·lbf)|
|60 g (930 gr) ZP Inc.-T||1,000 m/s (3,300 ft/s)||30,000 J (22,000 ft·lbf)|
|64 g (990 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)|
|Source: Post WWII Ammunition Russian Ammunition Page|
It was originally developed for the PTRS and PTRD anti-tank rifles, but 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.
The 14.5x114 mm has 42.53 ml (655 grains H2O) cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt action rifles and machine guns alike, under extreme conditions.
14.5x114 mm maximum cartridge dimensions. All sizes in millimeters (mm).
According to the official guidelines the 14.5x114 case can handle up to 360 MPa (52213 psi) piezo pressure. In C.I.P. regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. pressure to certify for sale to consumers.
Cartridges use lacquered steel cases and a percussion primer. Some countries also use brass cartridge cases. The propellant consists of 28.8g smokeless powder with seven tubes, designated as 5/7NA powder. Two different versions of bullet series are known, the earlier had a conventional bullet jacket with boat-tail. These had a long engraving portion that caused considerable barrel wear. The newer bullet types have a smaller engraving portion with a rounder boat-tail and were used from about 1957 on.