MIX converted 300 BLK 1,000 ct. FREE SHIPPING


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1,000 +

All rifle brass is fully processed decapped, swaged (crimp removed) sized ,trimmed, wet media cleaned, & polished. All brass is ready to load just add primer, powder & bullet.

WARNING: .300 BLACKOUT will chamber & fire in a 5.56/.223 rifle & can cause serious injury or death. Please be extremely cautious & keep ammunition separated & correctly labeled. M&S Armament LLC. isn’t responsible for any damage or injury from mishandling of this product.  

If you have any questions please feel free to call us or e-mail mario@msprocessedbrass.com

Note: Even though brass has been checked & qualified we always suggest inspecting brass & loaded ammunition before use.

When loading flat base bullets we suggest a light chamfer on inside of brass mouth or using a neck expander die.