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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 ]
.17 Hornady Mach 2.17 Hornady Magnum Rimfire.17 Winchester Super Magnum.22 BB Cap.22 CB Cap.22 Short.22 Long.22 Long Rifle.22 Extra Long.22 Remington Automatic.22 Winchester Automatic.22 ILARCO.22 Winchester Rimfire.22 Winchester Magnum Rimfire.25 Stevens.25 Stevens Short.32 rimfire.38 rimfire.44 Henry.46 rimfire.56-46 Spencer.56-50 Spencer
WSM and WSSM family of cartridges. From left to right: .223 WSSM, .243 WSSM, .25 WSSM, .270 WSM, 7 mm WSM, .300 WSM, .325 WSM. Winchester Super Short Magnum, or WSSM is a line of rebated bottlenecked centerfire short magnum cartridges introduced by the U.S. Repeating Arms Company (Winchester Inc). [1]
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 American ammunition manufacturer Hornady got the 300 Precision Rifle Cartridge [15] SAAMI-standardized in 2018. [ 16 ] [ 17 ] In 2019 it got C.I.P. -standardized as the 300 PRC. [ 18 ] The .375 Ruger cartridge has functioned as the parent case for the .300 Precision Rifle Cartridge (300 PRC), [ 19 ] which is essentially a necked-down ...
Compared to the Winchester's .270 WSM SXP270S ammunition show a bullet drop of 24.5 in (62 cm) but retains 1,552 ft⋅lbf (2,104 J). The N257115BST bullet retains enough energy to be effective on deer out to 550 yd (500 m) while the SXP270S's bullet extends this range out by a further 100 yd (91 m) although both the Weatherby's and Winchester's ...
Since having an existing barrel rebored and rechambered was (at that time) less expensive than fitting a new barrel, a 303-25 rifle with a worn-out barrel could be economically converted to .277 caliber, known as the 303-270. The .222 Remington - a .222 Rimmed in a Martini was also commonly found. As too were the "Tini-Mite" and "Mini-Mite ...
If these bullets were loaded and fired in the opposite of their intended direction, the full metal jacket bullet might expand like a soft point, and the soft point bullet might perform like a full metal jacket. Soft-point bullets expose the soft lead-alloy core on the forward part of the bullet most likely to be deformed when striking a target.