I have a buddy that has a bushmaster 308 ar with a failure to eject issue. I took it apart and looked at it and everything looks good but when I go to chamber around it is like the headspacing is off. The chamber looks ok from what I can tell but I put a dummy round in and racked the charging handle and it was tuff to pull. So I put a different dummy round in and the bolt got hung up and would not come back. I had to seperate the upper and lower and get a brass punch to tap the bolt back.I cleaned the whole rifle and swabbed out the chamber. Problem still exist. Any advice on this? Thanks
