.338 Winchester Magnum

1958 · Winchester · 6 firearms in catalog

Also known as: .338 Win Mag

Cartridge specifications

Bullet Diameter8.59 mm (0.338")
Neck Diameter9.3 mm (0.366")
Base Diameter13.03 mm (0.513")
Case Length63.5 mm (2.500")
Overall Length84.84 mm (3.340")
Max Pressure434 MPa (62,959 psi)
Typical Bullet Weight16.2 g (250 gr)
Typical Muzzle Velocity808 m/s (2651 fps)
Typical Muzzle Energy5289 J (3901 ft·lbf)
Primer TypeLarge Rifle Magnum
Cartridge TypeBelted
Introduced1958

Firearms chambered in .338 Winchester Magnum