.45 Winchester Magnum

1979 · Winchester · 3 firearms in catalog

Also known as: .45 Win Mag

Cartridge specifications

Bullet Diameter11.43 mm (0.450")
Neck Diameter12.09 mm (0.476")
Base Diameter12.19 mm (0.480")
Case Length30.35 mm (1.195")
Overall Length40.03 mm (1.576")
Typical Bullet Weight14.9 g (230 gr)
Typical Muzzle Velocity442 m/s (1450 fps)
Typical Muzzle Energy1455 J (1073 ft·lbf)
Primer TypeLarge Pistol
Cartridge TypeRimless
Introduced1979

Firearms chambered in .45 Winchester Magnum

Cartridge family

Parent cartridge: .45 ACP