357 Sig

Ideal for a shooter who desires the power of a .357 Magnum cartridge in a semi-automatic handgun, the .357 SIG’s high velocity, reliable precision and impressive range make it an ideal choice for self-defense or hunting large game. The sleek, bottleneck design of the .357 SIG allows for a wide range of flexibility in the type of projectile used without the often-associated feeding issues.

Drawn from American-made premium brass cups, each casing undergoes rigorous in-line and post-production quality assurance testing to ensure a flawless casing of unparalleled durability and dependability.

Standard casing dimensions and tolerances have been modified to achieve maximum performance. Jagemann™ Technologies’ in-house tooling and engineering capabilities provide the ability to customize casing dimensions for use with specific projectiles. If you have a custom request, we will meet your needs.

Contact us for more information.


Type: Military/Police, Personal Defense, Sporting
Date of Origin: 1994 (Switzerland / USA)
Case Type: Rimless, bottleneck
Neck Diameter: .381 in (9.68 mm)
Shoulder Diameter: .424 in (10.77 mm)
Base Diameter: .424 in (10.77 mm)
Rim Diameter: .424 in (10.77 mm)
Rim Thickness: .055 in (1.40 mm)
Case Length: .865 in (21.97 mm)
Primer Type: Small Pistol
Max Pressure: 40,000 psi (275.8 MPa)


5757 West Custer St.
Manitowoc, WI 54220


(800) 998-6901