7.62 x 39 mm

The 7.62 x 39 mm round was designed during World War II.  It is of Soviet origin.  Both military and civilians use this cartridge.    This remained the Soviet standard until the 1970’s.  It functions well in temperatures ranging from -58  to 122 degrees Fahrenheit.

 

CIP, SAAMI SPECIFICATIONS:

Type: Rifle
Date of Origin: 1944
Case Type: Rimless, Bottleneck
Neck Diameter: .339 in (8.6 mm)
Shoulder Diameter: .396 in (10.07 mm)
Base Diameter: .447 in (11.35 mm)
Rim Diameter: .447 in (11.35 mm)
Case Length: 1.524 in (38.70 mm)
Primer Type: Boxer large rifle
Max Pressure: 51,490 psi (355 MPa) CIP

45,010 psi (310.3 MPA) SAAMI