> 300 BLK Brass Fully Processed
300 AAC blackout brass - fully processed with annealing.
300 BLK Brass Fully Processed
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1,000 pieces per box (Qty of 1 = 1,000; Qty of 2 = 2,000; etc)
Ready to ship! No waiting for processing. Fast shipping via USPS Priority Mail.
300 AAC BLK Blackout
Predominantly Lake City
Level of Completion:
This item ships in a custom wood crate to help prevent shipping damage.
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300 AAC BLK Brass Made From Once Fired Military Brass that is Fully Processed - 1,000 Pieces
We're very proud to offer you our fully processed 300 AAC Blackout brass! This fully processed brass is converted from predominantly Lake City, but will also contain other government contract brass. In processing 300 Blackout, our first step is to deprime and then swage the primer pocket, followed by a thorough wash to polish the cases inside and out. Next, we perform the primary sizing operation, leaving the cases just shy of the proper specification. Finally, we anneal the cases to remove the stresses induced from sizing, and perform the final sizing operation to bring the cases into spec. We then trim to length (1.358" +/- .003"), slightly bell the case mouths to eliminate the need for manual deburring, bag them up with a desiccant, and box them in a custom wood crate. This brass is "Good to Go!" We make every effort to ensure that each case is fully ready to load, but we've still included extra brass to cover any damaged pieces that we may have missed.
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Shipping & Delivery
"In Stock" indicates the brass has already been processed and is ready to be shipped. In stock brass will be shipped on or before the next business day after the order. All brass is shipped via USPS Priority Mail® and is fully insured. Transit time from origin to destination is typically 2-3 business days.
We ship only to the United States.
300 AAC Blackout
Roberts and Son Brass offers 300 AAC Blackout brass for sale. 300 AAC Blackout, also known as 300 BLK, is a cartridge developed by Advanced Armament Corporation for use in the AR-15 family of rifles. 300 AAC Blackout was designed to achieve similar ballistics to the 7.62x39mm cartridge, while retaining the ability to fit inside standard AR-15 magazines at their intended capacity. One can find 300 AAC Blackout load data from many sources, for reloading 300 BLK ammo that is mission specific – from varmint rounds, to plinking rounds, to large game rounds. 300 BLK is a very versatile cartridge that can serve a myriad of purposes.
Roberts and Son Brass creates 300 AAC Blackout brass from once fired military 223 brass. By turning 223 to 300 AAC Blackout, we retain the benefits of utilizing military brass, but gain the advantages of having a caliber that fits many roles. Turning 223 brass into 300 Blackout cases is not an extremely difficult process, but it’s one that must be done properly to ensure the best results. Roberts and Son Brass anneals each and every 300 Blackout case, to ensure the brass returns to its original state and doesn’t become brittle. This also ensures that even though we process bulk 300 Blackout, we still maintain consistent sizing with each case.
Our goal at Roberts and Son Brass is to offer 300 AAC Blackout Brass that our customers can use to make the finest 300 AAC Blackout ammo for their specific purpose. When it comes to brass for reloading .300 Blackout, we believe you’ll find our 300 Blackout cases to be some of the very best around!
300 BLK Brass Fully Processed (100 Sample Pack)
In stock! Free Shipping.
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