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The 270 Winchester Short Magnum or 270 WSM is a short 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. [ 3 ]
The .270 Winchester is a rifle cartridge developed by Winchester Repeating Arms Company in 1923, and it was unveiled in 1925 as a chambering for their bolt-action Model 54 [3] to become arguably the flattest shooting cartridge of its day, only competing with the .300 Holland & Holland Magnum, also introduced in the same year.
The .270 Weatherby Magnum was the first belted magnum based on the .300 H&H Magnum to be developed by Roy Weatherby in 1943. [2] The cartridge is short enough to function in standard-length long actions with a brass length of 2.549" or 64.74mm and an overall length of about 3.295".
The Hornady Superformance Ammunition drives a Hornady 180 gr (12 g) Interbond or SST bullet at 3,040 ft/s (930 m/s) and the 150 gr (9.7 g) SST bullets at 3,310 ft/s (1,010 m/s). The.300 Ruger Compact Magnum's greater case capacity, and the "short fat" cartridge efficiency lead to increases in the neighborhood of 150 fps over the H&H cartridge ...
Alpha Beta. A grocery store chain best known for its little cowboy mascot, Alpha Beta began in 1910 and lasted until about 1995. The store started in California, but eventually expanded throughout ...
Key Points. The maximum monthly Social Security benefit is $5,108 but it’s very difficult to get it. You must earn the maximum taxable wage for 35 years or longer.
Elon Musk looks on, in the Oval Office of the White House in Washington, D.C., U.S. - Kevin Lamarque/Reuters
The original Hornady loads were not Superformance, but had the same velocity, with the Superformance loading offering lower recoil due to a smaller propellant charge, and less steep pressure curve. The Double Tap achieves 2,825 ft/s (861 m/s) and 4,700 ft⋅lb (6,400 J) with a 270-grain Barnes TSX from a 23-inch barrel Ruger 77 African.