Winchester's .270 WSM: Compact Power in Short-Action Rifles
The .270 Winchester Short Magnum (WSM), introduced in 2002, offers impressive performance in a compact package. Winchester's atypical design approach has resulted in a cartridge that combines high velocity with compatibility in short-action rifles.
The .270 WSM attains muzzle velocities up to 3,275 feet per second (f.p.s.) with a 130-grain bullet, outpacing the .270 Winchester and nearing the .270 Weatherby Magnum's performance. It holds more water (71.8 to 75.1 grains) than the .270 Winchester but less than the .270 Weatherby Magnum. Winchester's unique case design, a short, wide profile with a 0.535" rebated rim, contributes to efficient ignition and accuracy.
Bullet selection is crucial for the .270 WSM. Consider overall length, bullet projection, and compatibility with the rifle's twist rate. The .270 WSM uses a 0.277"-diameter bullet, unlike its competitors. Handloading is straightforward, with component cases available from major manufacturers like Winchester, Federal, Hornady, Nosler, and Norma.
The .270 Winchester Short Magnum delivers exceptional performance in a compact, versatile package. It fits most short-action rifles, offers high velocities, and is easy to handload. Despite its 'magnum' status, it maintains compatibility with standard-length actions, making it an attractive choice for hunters and shooters alike.
