.307 Winchester

.307 Winchester
TypeRifle
Place of originUnited States
Production history
Designed1982
ManufacturerWinchester
Produced1982–present
Specifications
Parent case.308 Winchester
Case typeRimmed, bottleneck
Bullet diameter.308 in (7.8 mm)
Neck diameter.344 in (8.7 mm)
Shoulder diameter.454 in (11.5 mm)
Base diameter.471 in (12.0 mm)
Rim diameter.506 in (12.9 mm)
Rim thickness.063 in (1.6 mm)
Case length2.015 in (51.2 mm)
Overall length2.560 in (65.0 mm)
Maximum CUP52,000[1] CUP
Ballistic performance
Bullet mass/type Velocity Energy
180 gr (12 g) Super-X Power-Point 2,510 ft/s (770 m/s) 2,519 ft⋅lbf (3,415 J)

The .307 Winchester cartridge was introduced by Winchester in 1982 to meet the demand of .300 Savage performance in a lever-action rifle equipped with a tubular magazine. It is nearly dimensionally identical to the more common .308 Winchester cartridge, the only differences being a rimmed base and thicker case walls.

  1. ^ "Max Chamber Pressure - SAAMI Specs". www.lasc.us.