This is fully processed and ready to load 300 AAC Blackout brass that's made from once-fired military brass. Due to the nature of processing 300 BLK brass from the 5.56/223 parent case, we only offer this brass in the fully processed configuration. If you wish to make your own 300 BLK from unprocessed or partially processed cases, we encourage you to view our category containing
brass. We also want to stress that this brass is guaranteed to have only been fired once in the entirety of its lifetime - we don't sell any range pickup brass or brass from sources where we can't verify the number of times it's been fired.
Total Items: 2
300 BLK Brass Fully Processed
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300 BLK Brass Fully Processed (100 Sample Pack)
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. Debris has been removed from the cases, but no processing or cleaning has been done. The military crimp will need to be removed when processing.
Deprimed, Swaged, Polished
. This brass has been deprimed, the primer pockets have been swaged, and the cases have been thoroughly polished inside and out. Final processing is all that's left to be performed, such as sizing and trimming to length.
Deprimed, Swaged, Polished, Annealed
. This is the same as DSP, except the brass has also been annealed to allow for more consistent sizing and extremely uniform neck tension.
. R&SB's premier offering, this brass has been deprimed, swaged, polished, annealed, full length sized, and trimmed to length. The case mouths are belled to eliminate manual deburring. It's "Good to Go!"
More Info on Our Process.