The 7.62×39mm round is a rifle cartridge of Soviet origin that was designed during World War II. Due to the worldwide proliferation of the SKS and AK-47 pattern rifles, the cartridge is used by both militaries and civilians alike. 7.62×39mm ammunition is tested to function well in temperatures ranging from −50 to 50 °C (−58 to 122 °F) cementing its usefulness in cold polar or hot desert conditions.
Norinco 7.62x39mm Military Surplus 123GR FMJ. Corrosive Steel Case Steel Core 1440rds
7.62 x 39 mm , 123 Grain, FMJ