.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.

Overview

The Winchester Big Bore Model 94 Angle Eject rifle was the only rifle produced to fire the cartridge, though competitor Marlin Firearms created some prototype model 336 rifles chambered in .307 Win. It is still commercially loaded today, but many handload to gain better performance and accuracy. Because of safety concerns owing to the rifle's tubular magazine, flat-nosed bullets are normally used.[2]

Specifications

180 gr (12 g) Super-X Power-Point bullet.[3] Ballistic Coefficient: 0.251

Distance Velocity Energy Short Trajectory Long Trajectory
Muzzle 2,510 ft/s (770 m/s) 2,519 ft⋅lb (3,415 J) - -
100 yd (91 m) 2,179 ft/s (664 m/s) 1,898 ft⋅lb (2,573 J) 0.0 in 1.5 in
200 yd (180 m) 1,874 ft/s (571 m/s) 1,404 ft⋅lb (1,904 J) -6.5 in -3.6 in
300 yd (270 m) 1,599 ft/s (487 m/s) 1,022 ft⋅lb (1,386 J) -22.9 in -18.6 in
400 yd (370 m) 1,362 ft/s (415 m/s) 742 ft⋅lb (1,006 J) - -47.1 in

Dimensions

Child cartridges

The .307 Winchester is the parent case for the .356 Winchester, and the proprietary round 6.5 JDJ #2.

It is also the parent case for the 7mm STE (Shooting Times Eastern).[4]

See also

References

  1. ^ "Max Chamber Pressure - SAAMI Specs". www.lasc.us.
  2. ^ "What is a .307 Winchester?". The Beatrice Daily Sun. 2015-09-02. Retrieved 2020-11-21.
  3. ^ "307 Winchester, 180 Grain". Winchester.com. Retrieved 2020-11-21.
  4. ^ Layne Simpson (2011-01-04). "The 7mm STE". RifleShooter. Retrieved 2020-11-21.
Wikimedia Commons has media related to .307 Winchester.