300 Blackout Brass (Small Rifle primer)

300 blackout brass  for sale online at cheap markdown costs with free shipping accessible on bulk at our online store, buy brass online. 5.56x45mm case necked down to.30 caliber and used as the basis for the.300 Blackout. Convert from 5.56 to.300 Blackout on rifles and pistols built on the AR-15 chassis, the barrel needs changed. The primary use of the Blackout is in suppressed weapons at subsonic speeds. These days, a lot of bolt-action and single-shot rifles are also made in this caliber.