.270 Winchester Short Magnum 140 grain Barnes TSX~ The 270 Winchester Short Magnum or 270 WSM is a short, unbelted, magnum cartridge created by necking down the .300 Winchester Short Magnum and fitting it with a .277 caliber bullet. The correct name for the cartridge, as listed by the Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI), is 270 WSM, without a decimal point. When it was introduced, the 300 WSM sported a new case that showed a lot of promise for uses in other calibers. In 2002 Winchester introduced new cartridges in its Winchester Short Magnum family, including the 7 mm WSM and 270 WSM. This new .270 cartridge was the third commercial .270 ever produced, and the first one in 60 years.
The 270 WSM is an improvement over the older 270 Winchester providing higher velocity with bullets of the same weight, and thus a flatter trajectory and more energy. Velocities tend to be about 250 ft/s (76 m/s) faster, in a cartridge that is shorter and can therefore be used in a shorter action for a more compact rifle if desired. The 270 WSM comes quite close in performance to that of the legendary .270 Weatherby Magnum. Except that the WSM is chambered in a short action and usually sports a 22″ to 24″ barrel where the Weatherby is usually chambered in rifles with a 26″ barrel.
Choice Ammunition has taken our 100% hand-loading techniques and produce an extremely accurate, highly dependable round for the .270 WSM in this load. Our loading tolerances are only matched by passionate hand-loaders in their own loading rooms. Consistent seating depths, powder charges and proprietary formulas of Choice Ammunition, make this 140 Grain Barnes TSX Lead Free round the best you can buy on the commercial market today.
Barnes’ most popular hunting bullet, the TSX™ Triple Shock® X-Bullet utilizes all-copper construction and innovative design to give you one of the deadliest, most dependable bullets you can buy. More than 20 years of copper bullet experience go into the TSX, delivering a bullet that gives you lower fouling, better accuracy, greater velocity and lower pressure. The TSX’s all copper construction delivers a lighter bullet than comparable lead core bullets, delivering higher velocities, flatter trajectories, and less recoil. This construction also delivers nearly 100% weight retention and produces surer, deeper penetration with its specially engineered nose cavity that peels back into four sharp-edged petals that cut through game. This specially designed nose cavity expands to double the bullet’s diameter almost immediately after impact at both high and low velocities, giving you a bullet that is as deadly on longer shots as it is at point blank range. The Triple-Shock X also features multiple precisely engineered rings cut into the bullet shank that serve as relief valves as the bullet travels down the bore. These rings give the bullet’s copper material a place to expand into under pressure, resulting in reduced pressures, less copper fouling, and better barrel harmonics for improved accuracy. Recommended by big game guides around the world. Made in USA.
- All copper bullet – lower fouling, better accuracy, greater velocity and lower pressure
- Lighter weight – higher velocities, flatter trajectories, and less recoil
- Nearly 100% weight retention after penetration
- Specially engineered nose cavity peels back into four sharp-edged petals
- Petals double bullet’s diameter almost immediately after impact
- Bullet shank rings serve as relief valves for less fouling and better barrel harmonics
- Surer, deeper penetration than comparable lead core bullets
- Velocity: 3,085 fps
- 100% Hand-Loaded