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Common uses: Hunting, Big Game, Long Range
| Type | rifle (centerfire) |
| Typical load | 150gr Winchester Power-Point |
| Muzzle velocity | 3200 fps |
| Muzzle energy | 3412 ft-lb |
| Published G1 ballistic coefficient | 0.346 |
| Case length | 53.34 mm |
| Overall length | 72.64 mm |
| SAAMI max pressure | 65000 PSI |
| Common twist rate | 1:9.5" |
| Range (yd) | Velocity (fps) | Energy (ft-lb) | Drop (in) |
|---|---|---|---|
| 0 | 3200 | 3410 | -1.5 |
| 100 | 2911 | 2821 | 0 |
| 200 | 2639 | 2320 | -2.6 |
| 300 | 2385 | 1894 | -10.3 |
| 400 | 2144 | 1531 | -24 |
| 500 | 1918 | 1225 | -45.4 |
At 1,000 yards, 7mm WSM (150gr at 3200 fps, 100 yd zero, standard conditions) has a modeled come-up of about 34.0 MOA / 9.9 MIL, retaining 1099 fps (subsonic).
| Range (yd) | Velocity (fps) | State | Drop (in) | Elev (MOA) | Elev (MIL) |
|---|---|---|---|---|---|
| 300 | 2385 | Supersonic | -10.3 | 3.3 | 0.95 |
| 400 | 2144 | Supersonic | -24.0 | 5.7 | 1.67 |
| 500 | 1918 | Supersonic | -45.4 | 8.7 | 2.52 |
| 600 | 1707 | Supersonic | -76.3 | 12.1 | 3.53 |
| 700 | 1516 | Supersonic | -119.1 | 16.3 | 4.73 |
| 800 | 1347 | Supersonic | -177.2 | 21.1 | 6.15 |
| 900 | 1207 | Transonic | -254.3 | 27.0 | 7.85 |
| 1000 | 1099 | Subsonic | -355.6 | 34.0 | 9.88 |
Extended predictions beyond 500 yards are modeled from the same G1 engine — useful for initial DOPE, but outside the 500-yard manufacturer-table validation audit. Confirm with observed DOPE, especially near transonic.
A retained-energy reference only — not a shoot/don't-shoot distance. Real effective range depends on your accuracy, shot placement, bullet construction, and conditions. The ~1,000 ft-lb (deer-sized) and ~1,500 ft-lb (elk-sized) figures are commonly cited rules of thumb, not standards.
Your barrel, ammunition lot, and conditions will differ — always verify against the manufacturer's data and your own rifle.
The 7mm WSM is a hard-hitting, flat-shooting big-game cartridge that pushes 150-grain bullets past 3,200 fps, giving it the reach and retained energy for open-country hunting of deer, sheep, and elk-sized game at extended range. Its appeal rests on packing near-7mm Rem Mag velocity into a short action, so rifles can be built lighter and more compact without sacrificing downrange authority. In practice it drives a stout recoil impulse and burns powder efficiently in a shorter barrel, though it never approached the popularity of the 7mm Rem Mag and today has a thinner selection of factory ammunition and rifles. It remains a capable choice for hunters who already own one, but its niche has largely been absorbed by more widely supported 7mm options.
Winchester introduced the 7mm WSM in 2002 as part of its Winchester Short Magnum family, following the flagship .300 WSM released in 2001. It uses the same fat, rebated-rim, short beltless case as the other WSM cartridges, necked to accept .284-inch bullets, and was engineered to deliver roughly 7mm Remington Magnum performance from a compact short-action rifle. Like its siblings, it was aimed at hunters wanting magnum ballistics in a lighter, shorter, faster-cycling package.
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