One of the most well-known rifle cartridges around the world, the 7.62x39 is an intermediate rifle cartridge that was developed by the Soviets during World War II. The 7.62x39 cartridge is synonymous with the AK-47, SKS rifles and the RPD and RPK light machine guns. 7.62x39 is a .30 caliber cartridge that provides good range performance along with solid terminal ballistics. Technical Specifications Bullet Type: HP Weight: 123 grain Muzzle Velocity (feet per second) 2536 Muzzl Energy (foot-pounds) 1765 Ballistic Coefficient (G1) 266 Max Powder Pressure Bar (lb/inch2) 46,412 Cartridge Max Length 2.20 inches Cartridge Average Weight 253 grain