Retail sellers who have issues sourcing large quantities of bulk 300 AAC brass can stop wearing out the phone. Capital Cartridge offers bulk 300 AAC Blackout ammo for sale in 2,000+ casing lots. This bulk 300 Blackout brass is unprocessed, mixed headstamp brass and may contain some .223/5.56 brass. This once-fired 300 Blackout ammunition includes spent primers and has not been cleaned or resized. These are 100-percent-brass casings, ready for your personal touch to add value before resale, or simply repackage it for sale as unprocessed reloading brass. Never worry about the availability of bulk 300 AAC brass again. Capital Cartridge has you covered.