.357 Magnum

Reloading data for .357 Magnum cartridges and specifications for cases and loads in this caliber.
Product number: CID_513
Load data for caliber ".357 Magnum"
The .357 Magnum is a revolver cartridge introduced by Smith & Wesson in 1935. It is a high-powered cartridge that is based on the .38 Special cartridge, but with a longer case and a higher powder charge. The .357 Magnum cartridge can be fired from a revolver with a cylinder chambered for .357 Magnum or .38 Special. It is commonly used for hunting, self-defense, and target shooting due to its high velocity and accuracy. The .357 Magnum has become one of the most popular revolver cartridges in the world and is still widely used today.
You find .357 Magnum with all common powders and bullets by clicking the 'Loads in this caliber' button above.

Technical Specifications (based on the respective safety standard - see more details in tab 'Datasheet' if available)

Caliber: .357 Magnum
Cartridge Type: Pistol/Revolver
Bullet Diameter: 0.357 '' | 9.07 mm
Primer Size: Small Pistol Magnum (SPM)
Max. Case Length (l3):1.29'' | 32.77 mm
Max .Cartridge Length / OAL:1.59'' | 40.39 mm
Maximum Standardized Pressure:43512 psi | 3000 bar
The 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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