7 mm Cartridge

The 7mm was introduced originally introduced in 1962. It is member of the belted magnum family, who’s purpose was to provide headspace control while easing cartridge extraction. This makes it a desirable choice for hunting dangerous game. It is a popular choice on the Western plains of the US, as well as for use on plains game in Africa.

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

Standard casing dimensions and tolerances have been modified to achieve maximum performance. Jagemann Sporting Group’s in-house tooling and engineering capabilities provide the ability to customize casing dimensions for use with specific projectiles. We can meet your needs.

Contact us for more information.


Type: Rifle
Date of Origin: 1912 (parent case is .375 H & H Magnum)
Case Type: Belted Magnum
Neck Diameter: .315 in (8.0 mm)
Shoulder Diameter: 491 in (12.5 mm)
Base Diameter: .512 in (13.0 mm)
Rim Diameter: .378 in (9.6 mm)
Base Thickness: .045 in (1.1 mm)
Case Length: 2.5 in (64 mm)
Primer Type: Large rifle magnum
Max Pressure: 61,000 psi (420 MPa)


at Natchezss.com

Shop Now


5757 West Custer St.
Manitowoc, WI 54220


(800) 998-6901