Rifle cartridge
| 7 mm Winchester Short Magnum |
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| Type | Rifle |
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| Place of origin | United States |
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| Designer | Winchester |
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| Designed | 2001 |
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| Produced | 2001–present |
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| Parent case | .300 Winchester Short Magnum |
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| Case type | Rebated-rimmed, bottleneck |
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| Bullet diameter | 0.284 in (7.2 mm) |
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| Land diameter | 0.277 in (7.0 mm) |
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| Neck diameter | 0.321 in (8.2 mm) |
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| Shoulder diameter | 0.538 in (13.7 mm) |
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| Base diameter | 0.555 in (14.1 mm) |
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| Rim diameter | 0.535 in (13.6 mm) |
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| Case length | 2.100 in (53.3 mm) |
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| Rifling twist | 1 turn in 9.5" |
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| Primer type | large rifle magnum |
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| Maximum pressure (C.I.P.) | 63,817 psi (440.00 MPa) |
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| Bullet mass/type |
Velocity |
Energy |
| 160 gr (10 g) |
3,050 ft/s (930 m/s) |
3,304 ft⋅lbf (4,480 J) |
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| Source(s): Winchester [1] |
The 7mm Winchester Short Magnum (also known as the 7mm WSM) is a centrefire cartridge developed in partnership with Browning Arms Company and Winchester ammunition, making its debut and introduced to the shooting public in 2001. It is a member of the Winchester Short Magnum family of cartridges.
