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The 7.62×45mm (designated as the 7,62 × 45 by the C.I.P.) [2] is a rimless bottlenecked intermediate rifle cartridge developed in Czechoslovakia. It is fired by the Czech Vz. 52 rifle , Vz. 52 light machine gun , and ZB-53 machine gun .
The 7.62 mm designation refers to the internal diameter of the barrel at the lands (the raised helical ridges in rifled gun barrels). The actual bullet caliber is often 7.82 mm (0.308 in), although Soviet weapons commonly use a 7.91 mm (0.311 in) bullet, as do older British ( .303 British ) and Japanese ( 7.7×58mm Arisaka ) cartridges.
The parent case (5.56×45mm NATO) was trimmed down to 1.560" and re-sized with a 7.62×40mm WT sizing die. [3] The overall case length after the shortening and re-sizing is 1.565". The cartridge was designed to use .308" diameter bullets in weights of 110 to 150 grains, with a standard twist rate of 1-12". [1]
An intermediate cartridge is a rifle/carbine cartridge that has significantly greater power than a pistol cartridge but still has a reduced muzzle energy compared to fully powered cartridges (such as the .303 British, 7.62×54mmR, 7.65×53mm Mauser, 7.92×57mm Mauser, 7.7×58mm Arisaka, .30-06 Springfield, or 7.62×51mm NATO), and therefore is ...
List of rifle cartridges, by primer type, calibre and name. ... 5 mm Remington Rimfire Magnum; 10.4×38mm Swiss Rimfire; 12.17×42mm RF; 14x33mmR Wänzl; Center fire ...
A guide to the recoil from the cartridge, and an indicator of bullet penetration potential. The .30-06 Springfield (at 2.064 lbf-s) is considered the upper limit for tolerable recoil for inexperienced rifle shooters. [2] Chg: Propellant charge, in grains; Dia: Bullet diameter, in inches; BC: Ballistic coefficient, G1 model; L: Case length (mm)
The cartridge remains one of the few standard-issue rimmed cartridges still in military use, and has one of the longest service lives of any military-issued cartridge. [ 3 ] The fully-powered 7.62×54mmR cartridge is still in use by the Russian military in the Dragunov (SVD) , SV-98 and other sniper rifles , as well as some modern general ...
The first variant of the new cartridge was officially adopted for service after completing range trials in December 1943; it was given the GRAU index 57-N-231. This cartridge actually had a case length of 41 mm, so it is sometimes referred to as the 7.62×41. The bullet it contained was 22.8mm long and had a core made entirely of lead.