I have a new M77 MKII stainless/synthetic .223 that I have put about 80-100 rounds through. I also have the exact same rifle in .243 and .30-06. The .223 does not eject well or properly as far as I can tell. If I do anything less than pull it back fast and hard, the shell stays in place. Even if I open the bolt at a faster rate than feels needful, it will not eject. The casing just stays put. My other two rifles eject with MUCH less effort. Any ideas, or does it need to go to the smith? It seems to do this the same with either empty casings or unfired rounds. It is a tackdriver though. In fact, all 3 guns are sub moa with factory ammo.