7.7x56mmR

1888 · 1 firearm in catalog

Also known as: .303 British

Cartridge specifications

Bullet Diameter7.92 mm (0.312")
Base Diameter11.68 mm (0.460")
Case Length56.4 mm (2.220")
Overall Length78 mm (3.071")
Typical Bullet Weight11.3 g (174 gr)
Typical Muzzle Velocity744 m/s (2441 fps)
Typical Muzzle Energy3130 J (2309 ft·lbf)
Primer TypeLarge Rifle
Cartridge TypeRimmed
Introduced1888

Firearms chambered in 7.7x56mmR