so i can have no bullets in mag with bolt locked back hit the button closes good.. now if i put bullets in mag with bolt locked back bullet will go in but bolt will not fully close can see about a inch of bolt that i shouldent be seeing and bolt gets locked up have to take a flat head screwdriver to push bolt back just a little and it will close . took o ring out of extracter no help . bullets have pertty good nicks on rim. any thoughts on this