357 SIG

.357 Sig ammo was jointly designed by Swiss firearms manufacturer Sig Sauer and the Federal Cartridge Corporation. The intent of the designers was a cartridge comparable to the .357 Magnum and capable of firing from semi-automatic handguns.

The .357 Sig round is derived from the case of the .40 S&W, necked-down and slightly elongated. This bottlenecked case design makes .357 Sig ammunition exceptionally reliable when feeding in semi-automatic firearms.

While the original ammunition utilized a .357 diameter bullet, the design was quickly revised to utilize .355 caliber (9mm) bullets which are typically shorter than standard 9mm bullets due to the length of the case neck. Most bullets used in .357 Sig are truncated cones, whether FMJ or hollow-point.

Common weights for .357 Sig projectiles are 115-grain, 125-grain and 147-grain. The heavier bullets are capable of exceeding 1200 feet per second muzzle velocity out of common barrel lengths, while the lighter bullets can reach over 1600 feet per second. Muzzle energy for the various loadings ranges from just below 500 foot-lbs to over 600 foot-lbs.

Adopted by numerous law enforcement agencies, including the Texas Highway Patrol, US Secret Service and Federal Air Marshals, .357 Sig ammo is ideally suited to duty and personal defense. Its combination of weight and velocity marks it as a hard-hitting caliber, while its notable case dimensions make it one of the most reliable pistol calibers in existence.

Check out our in-stock 357 Sig ammo for sale below from major manufacturers like Federal, Sig Sauer and others:

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18 Item(s)

  1. 500rds - 357 Sig Remington UMC 125gr. FMJ Ammo 500rds - 357 Sig Remington UMC 125gr. FMJ Ammo

    ☆☆☆☆☆ 1 Review(s)

    $214.95
    $0.43/ppr

    6 In Stock

  2. 500rds - 357 Sig Remington UMC 125gr. Hollow Point Ammo 500rds - 357 Sig Remington UMC 125gr. Hollow Point Ammo
    $229.95
    $0.46/ppr

    21 In Stock

  3. 50rds - 357 Sig Remington UMC 125gr. FMJ Ammo 50rds - 357 Sig Remington UMC 125gr. FMJ Ammo
    $23.95
    $0.48/ppr

    166 In Stock

  4. 50rds - .357 Sig Sellier & Bellot 140gr. FMJ Ammo 50rds - .357 Sig Sellier & Bellot 140gr. FMJ Ammo

    ☆☆☆☆☆ 2 Review(s)

    $24.95
    $0.50/ppr

    7 In Stock

  5. 50rds - 357 Sig Remington UMC 125gr. Hollow Point Ammo 50rds - 357 Sig Remington UMC 125gr. Hollow Point Ammo
    $25.05
    $0.50/ppr

    135 In Stock

  6. 500rds - 357 Sig Remington Golden Saber 125gr. Bonded BJHP Ammo 500rds - 357 Sig Remington Golden Saber 125gr. Bonded BJHP Ammo
    $284.95
    $0.57/ppr

    11 In Stock

  7. 50rds - 357 Sig Remington Golden Saber 125gr. Bonded BJHP Ammo 50rds - 357 Sig Remington Golden Saber 125gr. Bonded BJHP Ammo

    ☆☆☆☆☆ 1 Review(s)

    $29.95
    $0.60/ppr

    35 In Stock

  8. 50rds - 357 Sig Speer Gold Dot LE 125gr. HP Ammo 50rds - 357 Sig Speer Gold Dot LE 125gr. HP Ammo
    $33.49
    $0.67/ppr

    50 In Stock

  9. 50rds - 357 Sig Winchester USA 125gr. FMJ Ammo 50rds - 357 Sig Winchester USA 125gr. FMJ Ammo
    $33.95
    $0.68/ppr

    17 In Stock

  10. 50rds - 357 Sig Federal LE Tactical HST 125gr. Hollow Point Ammo 50rds - 357 Sig Federal LE Tactical HST 125gr. Hollow Point Ammo

    ☆☆☆☆☆ 5 Review(s)

    $36.95
    $0.74/ppr

    19 In Stock

  11. 20rds - 357 Sig Corbon 115gr. HP Ammo 20rds - 357 Sig Corbon 115gr. HP Ammo
    $17.95
    $0.90/ppr

    6 In Stock

  12. 20rds - 357 Sig Hornady 147gr. XTP Hollow Point Ammo 20rds - 357 Sig Hornady 147gr. XTP Hollow Point Ammo
    $18.95
    $0.95/ppr

    5 In Stock

  13. 50rds - 357 Sig Federal Personal Defense 125gr. Hollow Point Ammo 50rds - 357 Sig Federal Personal Defense 125gr. Hollow Point Ammo

    ☆☆☆☆☆ 1 Review(s)

    $49.95
    $1.00/ppr

    56 In Stock

  14. 200rds - 357 SIG Winchester Elite 125gr. PDX1 Bonded JHP Ammo 200rds - 357 SIG Winchester Elite 125gr. PDX1 Bonded JHP Ammo
    $209.95
    $1.05/ppr

    2 In Stock

  15. 20rds - .357 Sig Sig-Sauer Elite Performance Ammunition 125gr. V-Crown JHP Ammo 20rds - .357 Sig Sig-Sauer Elite Performance Ammunition 125gr. V-Crown JHP Ammo

    ☆☆☆☆☆ 1 Review(s)

    $21.95
    $1.10/ppr

    26 In Stock

  16. 20rds - 357 SIG Winchester Elite 125gr. PDX1 Bonded JHP Ammo 20rds - 357 SIG Winchester Elite 125gr. PDX1 Bonded JHP Ammo
    $21.95
    $1.10/ppr

    84 In Stock

  17. 20rds - 357 Sig Hornady Critical Duty 135gr. FlexLock HP Ammo 20rds - 357 Sig Hornady Critical Duty 135gr. FlexLock HP Ammo
    $21.95
    $1.10/ppr

    36 In Stock

  18. 20rds - 357 Sig Speer Gold Dot 125gr. HP Ammo 20rds - 357 Sig Speer Gold Dot 125gr. HP Ammo
    $23.95
    $1.20/ppr

    35 In Stock

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18 Item(s)

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