08-12-2018, 11:26 AM
Something else to check for brass being ejected forward, see if the bolt face when you manually pull back all the way till it stop on the charging handle. Bolt face should stop in front of the back edge of the ejection port by a 1/8" to 1/4", of it disappears into the receiver the brass can tag that edge and make the brass to do all sorts of things.