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The 12.7 × 108 mm has 22.72 ml (350 grains) H 2 O cartridge case capacity. 12.7 × 108 mm maximum cartridge dimensions. [citation needed] All sizes in millimeters (mm). Americans define the shoulder angle at alpha/2 ≈ 18.16 degrees. According to guidelines the 12.7 × 108 mm case can handle up to 360 MPa (52,213 psi) piezo pressure.
The Yakushev-Borzov YakB-12.7 mm [1] is a remotely controlled 12.7×108mm caliber four-barrel rotary heavy machine gun developed by the Soviet Union in 1973 for the Mil Mi-24 attack gunship and low-capacity troop transporter, with 1470 rounds, which can also be mounted in GUV-8700 machine-gun pods with 750 rounds.
The CIP for 12.7 x 108 mm is 360 MPa (52213 psi) with a 125% proof test which would be 450 MPa (65266 psi). According to TM43-0001-27 the average specification for all regular 50 BMG ammo (see 50 BMG article) is 378 Mpa (54923 psi), and in TM43-0001-27 the proof round is listed with a 448 Mpa (65000 psi) pressure.
Soviet Cannon: A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 53. Austria: Koll. p. 53. ISBN 978-3-200-01445-9 .
The Berezin UB is a gas-operated air-cooled machine gun chambered for the Soviet 12.7×108mm infantry machine gun round. Ammunition is supplied via a disintegrating link belt with a unique system in which each new round helps to extract the spent cartridge.
The whole ammo weights 130 g (4.6 oz), the projectile tip weights 46 g (1.6 oz), with a muzzle velocity around 820 m/s (2,690.3 ft/s). The DBJ-10 12.7×108mm multipurpose round (Chinese: DBJ10多功能弹) is a type of armor-piercing incendiary PELE ammunition. The ammo utilizes "penetrator with enhanced lateral effect" (PELE), which contains ...
The QJZ-89, also known as the Type 89 heavy machine gun, is a heavy machine gun designed in the People's Republic of China which fires the Soviet 12.7×108mm ammunition. [ 1 ] History
12.7×108 mm firearms (3 C, 1 P) M. 12.7 mm machine guns (2 C, 3 P) Pages in category "12.7 mm firearms" The following 9 pages are in this category, out of 9 total.