I posted this a while back and since I have tried a few things to remedy the problem. I built a 223 AI that for some reason slams the brass against the lip of the locking lug inside the action upon ejection. I have treid to emory down the lip of the lug as well as I cut a piece of coil from the ejector spring. I does not dent the brass as bad as it used to but, it still dings it up a bit. I am really unsure how to fix this or if its something I should even worry about. I am just concerned that over time, numerous reloads, that the dings will eventually weaken the brass and cause something to go wrong inside the rifle with a failed case or something.