Sig Sauer Unprimed 10mm Auto Handgun Brass (brand part no. BP1010) gives 10mm handloaders a consistent, unprimed case to build from. Each case in this 100-count bag is manufactured to the same weight, concentricity, and wall uniformity standards Sig Sauer applies across its ammunition line, so charges and bullet seating behave predictably from one case to the next. Unprimed brass lets the reloader choose primer type and pocket condition from the start, making it a good fit for handloaders who already have a preferred small pistol primer on hand for their 10mm Auto loads.

Key Specifications

• Packaged in a 100-count bag, sized for a standard reloading bench session.
• Chambered for 10mm Auto, matching the case dimensions of the cartridge’s SAAMI spec.
• Sold unprimed, so the reloader selects and seats primers to their own load specification.
• Manufactured for consistent weight and wall concentricity, which helps keep charge weights and pressures uniform.

Frequently Asked Questions

Does this brass come with primers installed? No, this is unprimed brass, so primers must be seated separately as part of the reloading process.

How many cases are in a bag? Each bag contains 100 unprimed 10mm Auto cases.

Buy the Sig Sauer Unprimed 10mm Auto Handgun Brass

Consistent brass is the foundation of an accurate 10mm handload, and this Sig Sauer case run is built with that consistency in mind. Order it from our Sig Sauer lineup in our reloading brass selection, and our Lubbock, Texas team can help you match it to primers and dies.