7.62×45mm

The 7.62×45mm (designated as the 7,62 × 45 by the C.I.P.) 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 cartridge was later dropped from use when the Czech converted to the standard 7.62×39mm Warsaw Pact cartridge of the Soviet Union. Its muzzle velocity and muzzle energy are slightly higher than that of the 7.62×39mm cartridge, and is on par with the .30-30 Winchester cartridge, with equivalent projectiles.

Not to be confused with 7.62×39mm or 7.62×54mmR.
7.62×45mm vz. 52
TypeRifle
Place of originCzechoslovakia
Service history
In service1952–1957
Used byCzechoslovakia
Production history
DesignerAlois Farlík
Designed1940s
Produced1952
Specifications
Case typeRimless, bottleneck
Bullet diameter7.83 mm (0.308 in)
Neck diameter8.66 mm (0.341 in)
Shoulder diameter10.56 mm (0.416 in)
Base diameter11.30 mm (0.445 in)
Rim diameter11.30 mm (0.445 in)
Rim thickness1.50 mm (0.059 in)
Case length45.00 mm (1.772 in)
Overall length60.00 mm (2.362 in)
Case capacity2.79 cm3 (43.1 gr H2O)
Rifling twist280 mm (1 in 11.03 in)
Primer typeBerdan rifle or Large rifle
Maximum pressure (C.I.P.)430.00 MPa (62,366 psi)
Ballistic performance
Bullet mass/type Velocity Energy
8.5 g (131 gr) 760 m/s (2,500 ft/s) 2,455 J (1,811 ft⋅lbf)
Test barrel length: 520 mm (20.472 in)
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