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| .300 Winchester Short Magnum |
| Type |
Rifle |
| Place of origin |
USA |
| Production history |
| Designer |
Winchester |
| Manufacturer |
Winchester |
| Produced |
2001 |
| Specifications |
| Bullet diameter |
.308 in (7.8 mm) |
| Neck diameter |
.344 in (8.7 mm) |
| Shoulder diameter |
.538 in (13.7 mm) |
| Base diameter |
.555 in (14.1 mm) |
| Rim diameter |
.535 in (13.6 mm) |
| Case length |
2.100 in (53.3 mm) |
| Overall length |
2.860 in (72.6 mm) |
| Rifling twist |
1-10" |
| Primer type |
Large rifle magnum |
| Ballistic performance |
| Bullet weight/type |
Velocity |
Energy |
| 150 gr (9.7 g) SP |
3,313 ft/s (1,010 m/s) |
3,657 ft·lbf (4,958 J) |
| 165 gr (10.7 g) HP |
3,223 ft/s (982 m/s) |
3,807 ft·lbf (5,162 J) |
| 180 gr (12 g) HP |
3,095 ft/s (943 m/s) |
3,830 ft·lbf (5,190 J) |
| 200 gr (13 g) SP |
2,822 ft/s (860 m/s) |
3,538 ft·lbf (4,797 J) |
Test barrel length: 24"
Source: Reloading data at Accurate Powder
|
.300 Winchester Short Magnum (also known as .300 WSM, commonly pronounced as "Whizzum") is a .308 caliber short magnum cartridge that was introduced in 2001 by Winchester.[1] The cartridge overall length is 72.64mm, cartridge case is 53.34mm in length and the bullet diameter is 7.84mm.
[edit] Use & Performance
.300 WSM is used in the Western United States for elk, mule deer, and whitetail and on the plains, where long range shooting is a must. Also, although relatively new, the 300 WSM has already had some success in benchrest shooting. [2] [3]
[edit] Muzzle velocity
- 10.69 g (165 gr) Full Metal Jacket(FMJ): 3,125 ft/s
- 11.66 g (180 gr) Full Metal Jacket(FMJ): 2,970 ft/s
[edit] Comparison
[edit] See also
[edit] References
- ^ The .300 WSM (Winchester Short Magnum) by Chuck Hawks (subscriptions req)
- ^ Iowa IBS 1000 Yard Match Results - Aug 2006
- ^ Montana Northwest 1k yard Club Results - Aug 2006
- ^ .308 Caliber reloading data at Accurate Powder
[edit] External links
