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.357 Magnum cartridge


The .357 Magnum cartridge introduced in 1934, and its use has since become widespread. 357 magnum ammunition is a popular range and self-defense round among American recreational shooters. Large enough to use in many capacities for hunting, the caliber primarily used in handguns, but you can find carbines chambered for 357 mag ammo as well.

This cartridge is regarded by many as an excellent hunting, metallic silhouette and self-defense round. With proper loadings, it can also be effective against large or dangerous game, such as bear and ungulates.

.357 Magnum cartridge is notable for its highly effective terminal ballistics when used for hunting or defense.

About .357 Mag

  • Type Handgun / Carbine
  • Place of origin United States
  • Designer: Elmer Keith, Phillip B. Sharpe
  • Designed: 1934 Introduced 1935


  • Parent case .38 Special
  • Case type Rimmed (R), straight
  • Bullet diameter  .357 in (9.1 mm)
  • Neck diameter .379 in (9.6 mm)
  • Base diameter .379 in (9.6 mm)
  • Rim diameter .440 in (11.2 mm)
  • Rim thickness .060 in (1.5 mm)
  • Case length 1.29 in (33 mm)
  • Overall length 1.59 in (40 mm)
  • Case capacity 26.2 gr H2O (1.70 cm3)
  • Primer type Small Pistol Magnum
  • Maximum pressure 35,000 psi (241 MPa)[1][2]

Ballistic performance

Bullet mass/type Velocity Energy
125 gr (8 g) JHP Federal 1,450 ft/s (440 m/s) 583 ft⋅lbf (790 J)
158 gr (10 g) JHP Federal 1,240 ft/s (380 m/s) 539 ft⋅lbf (731 J)

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ATTENTION: The following locations have ammunition restrictions.

California - Retailer must ship to FFL.

Connecticut - Retailer must have your ACE or Pistol Permit and State ID on file or ship directly to and FFL.

Illinois - Retailer must have your FOID and State ID on file.

Illinois (Chicago) - Retailer must ship to an FFL.

Massachusetts - Retailer must have your ACE or Pistol Permit and State ID on file or ship directly to an FFL.

New York - Retailer must ship to an FFL.

New York (New York City) - No ammo shipments allowed.

New Jersey - A copy of your current Drivers License and Firearms Purchaser ID Card are required before a retailer can ship the order.

Please check local laws and shipping policy before placing an order.