.357 SIG

.357 SIG
.357 SIG jacketed flat point cartridge
TypePistol
Place of originSwitzerland
United States
Production history
DesignerSIGARMS / Federal Premium Ammunition
Designed1994
Produced1994–present
Specifications
Parent case10mm Auto
Case typeRimless, bottleneck
Bullet diameter9.02 mm (0.355 in)
Land diameter8.71 mm (0.343 in)
Neck diameter9.68 mm (0.381 in)
Shoulder diameter10.77 mm (0.424 in)
Base diameter10.77 mm (0.424 in)
Rim diameter10.77 mm (0.424 in)
Rim thickness1.40 mm (0.055 in)
Case length21.97 mm (0.865 in)
Overall length28.96 mm (1.140 in)
Case capacity1.27 cm3 (19.6 gr H2O)
Rifling twist406 mm (1 in 16 in)
Primer typeSmall pistol
Maximum pressure (C.I.P.)305.0 MPa (44,240 psi)
Maximum pressure (SAAMI)275.8 MPa (40,000 psi)
Ballistic performance
Bullet mass/type Velocity Energy
8.1 g (125 gr) Federal FMJ 1,350 ft/s (410 m/s) 506 ft⋅lbf (686 J)
8.1 g (125 gr) Doubletap FMJ-FP 1,450 ft/s (440 m/s) 583 ft⋅lbf (790 J)
5.83 g (90 gr) Grizzly JHP 1,900 ft/s (580 m/s) 721 ft⋅lbf (978 J)
8.1 g (125 gr) Underwood TMJ 1,475 ft/s (450 m/s) 604 ft⋅lbf (819 J)
6.48 g (100 gr) Cor-bon PB 1,600 ft/s (490 m/s) 568 ft⋅lbf (770 J)
Source(s): 4.5" barrel for DoubleTap Ammunition, NO BARREL LENGTH GIVEN BY Grizzly Cartridge and Underwood Ammo m and 4.0" barrel for Corbon PB. See also C.I.P.[1]

The .357 SIG (designated as the 357 Sig by the SAAMI[2] and 357 SIG by the C.I.P.[1] or 9×22 mm in official metric notation) is a bottlenecked rimless centrefire handgun cartridge developed by the Swiss-German firearms manufacturer SIG Sauer, in cooperation with ammunition manufacturer Federal Premium. The cartridge is used by a number of law enforcement agencies.[3]

  1. ^ a b "C.I.P. TDCC datasheet 357 SIG" (PDF). cip-bobp.org. Archived (PDF) from the original on 4 August 2016. Retrieved 24 April 2018.
  2. ^ "SAAMI 357 Sig cartridge and chamber drawings" (PDF). saami.org. Archived from the original (PDF) on 2014-07-14. Retrieved 24 April 2018.
  3. ^ The Gun Digest Book of Sig-Sauer: a complete look at Sig-Sauer pistols. Massad Ayoob. 2004. pp. 51–53.