I have looked around on the forum and have not seen this specific issue. New 1894 Lever action .44 mag. 1st 50rnds and a couple cleanings went great then it started to bind when cycling. Upon inspection it looks like the locking lug has dented into the receiver and mushroomed the material into the passageway of the bolt. I cannot send it back do to Ruger buying Marlins name. Has anybody seen this? Can I stone it smooth? Will it affect head spacing?