Nope no dent. Will have to post some updated pics. Have changed scope set up and did a refinish on the stock. Have found it does get dirty fast but take down is quick. It likes hornaday Hornady Manufacturing Company :: Ammunition :: Rimfire :: 22 WMRI own 2, a 1960 and a 1967 model that looks like yours. On the extraction problem. Check to see if there is a dent in the barrel, were the firing pin hits the shell. Could be from dry firing in the past.