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The .357 Smith & Wesson Magnum, .357 S&W Magnum, .357 Magnum, or 9×33mmR (as it is known in unofficial metric designation) is a smokeless powder cartridge with a 0.357 in (9.07 mm) bullet diameter. It was created by Elmer Keith , Phillip B. Sharpe, [ 2 ] and Douglas B. Wesson [ 2 ] [ 3 ] of firearm manufacturers Smith & Wesson and Winchester .
Components of a modern bottleneck rifle cartridge. Top-to-bottom: Copper-jacketed bullet, smokeless powder granules, rimless brass case, Boxer primer.. Handloading, or reloading, is the practice of making firearm cartridges by manually assembling the individual components (metallic/polymer case, primer, propellant and projectile), rather than purchasing mass-assembled, factory-loaded ...
A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile caliber and case shoulder shape. [ clarification needed ] The term derives from the .357 Magnum , the original revolver cartridge with this designation.
571 magnum shotgun propellant introduced in 1973. [1] 630P Pistol propellant introduced in 1968 [1] and replaced in 1973 by 630 with 35 percent nitroglycerin and no deterrent coating for magnum revolver loads. [10] 680BR Ball Rifle propellant introduced in 1968 and replaced by 680 in 1973 for .22 Hornet, .218 Bee and .256 Winchester Magnum. [1]
The rimmed .375 H&H Flanged Magnum for double-guns and the .375 H&H Belted Rimless Magnum with a headspacing belt for magazine-fed rifles were released simultaneously in 1912. .375 Ruger: 2007 US 1 [4] R [5] 9.5×65.5mm 2840 [4] 4835 [4] 3.405 90.5 [10] 0.375 [10] 0.430 [5] 65.5mm Developed in collaboration between Ruger and Hornady. [citation ...
The most common use of gas checks are found in .44 Magnum, .357 Magnum, and 10mm Auto which were developed from non-magnum cartridges by firearm enthusiasts such as Elmer Keith. By loading the large capacity cases designed for black powder with large charges of smokeless powder , velocities well in excess of 1000 ft/s (300 m/s) were produced ...
.256 Gibbs Magnum.256 Newton.256 Winchester Magnum.257 Roberts.257 Weatherby Magnum.26 Nosler.260 Remington.264 LBC-AR.264 Winchester Magnum.270 Weatherby Magnum.270 Winchester.270 Winchester Short Magnum.275 H&H Magnum.275 No 2 Magnum.275 Rigby.276 Enfield.276 Pedersen.277 FURY.277 Wolverine.28 Nosler.280 Ackley Improved.280 British.280 Flanged
Increasing the case length. This process (which allows the cartridge to contain more propellant and thus increases the potential energy of the bullet) was used to make the powerful .357 Magnum cartridge from the much weaker .38 Special: A .357 magnum bullet has more than 3 times more energy than a .38 special bullet of the same weight ...