Premium 10mm Brass – New & Once-Fired Cases for Reloading

Reload your 10mm Auto rounds with confidence using Diamond K Brass. We offer both new and once-fired 10mm brass, hand-sorted, tumble-polished, and inspected to ensure consistent dimensions, reliable feeding in semi-autos, and excellent reloadability. Ideal for duty, self-defense, competition, and range shooters who demand durable, consistent cases.

Why Choose Diamond K 10mm Brass

• Certified Quality: Each lot is inspected for dents, cracks, and deformities before packaging.

• Large Pistol Primer: Cases are compatible with large pistol primers used in standard 10mm loads.

• Brass & Nickel Options: Choose traditional brass or nickel-plated cases for corrosion resistance and smoother feeding.

• Ready to Process: Once-fired cases are cleaned and tumble-polished—ready for depriming, resizing, trimming, and loading.

• Bulk Availability: Pack sizes available to suit hobbyists and commercial reloaders (common options: 100, 500, 1,000+). Custom bulk quotes on request.

Benefits of Reloading 10mm Brass

Reloading 10mm brass saves money and gives you control over bullet selection and charge for defense, hunting, or competition loads. Our processed once-fired brass delivers near-new performance at a fraction of the cost—perfect for high-volume shooters and precision handloaders.

Fast Shipping & Trusted Service

Most orders ship within 24–48 hours with secure packaging and tracking. For large or recurring orders we offer volume pricing and custom handling—contact our team for a quote.

Order Your 10mm Brass Today

Stock your reloading bench with premium 10mm brass from Diamond K Brass—polished, inspected, and ready to reload. Browse options and place your order now.