.357 Magnum

Characteristics of caliber .357 Magnum and comprehensive load data for cartridges in this caliber.
Product number: CID_513
Product information ".357 Magnum"
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 .357-inch (9.07 mm) bullet diameter. It was created by Elmer Keith, Phillip B. Sharpe, and Douglas B. Wesson of firearms manufacturers Smith & Wesson and Winchester.
It is based upon Smith & Wesson's earlier .38 Special cartridge. The .357 Magnum cartridge was introduced in 1934, and its use has since become widespread. This cartridge started the "Magnum era" of handgun ammunition. The .357 Magnum cartridge is notable for its highly effective terminal ballistics.
Caliber: .357 Magnum
Cartridge Type: Pistol/Revolver
Bullet Diameter: 0.357 '' | 9.07 mm
Max. Case Length (l3): 1.29'' | 32.8 mm
Max .Cartridge Length / OAL: 1.59'' | 40.4 mm
Maximum Standardized Pressure: 43511 psi | 3000 bar
C.I.P.
C.I.P. is not a manufacturer but a safety standardThe Commission internationale permanente pour l'épreuve des armes à feu portatives ("Permanent International Commission for the Proof of Small Arms" – commonly abbreviated as C.I.P.) is an international organisation which sets standards for safety testing of firearms. (The word portatives ("portable") in the name refers to the fact the C.I.P. tests small arms almost exclusively; it is ordinarily omitted from the English translation of the name.) As of 2015, its members are the national governments of 14 countries, of which 11 are European Union member states. The C.I.P. safeguards that all firearms and ammunition sold to civilian purchasers in member states are safe for the users.
To achieve this, all such firearms are first proof tested at C.I.P. accredited Proof Houses. The same applies for cartridges; at regular intervals, cartridges are tested against the C.I.P. pressure specifications at the ammunition manufacturing plants and at C.I.P. accredited Proof Houses.
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