Joe: If nothing else than a stock change is seriously altering your rifle's abilit to feed , then you have more problems than your going to be able to shake a stick at. First, make sure that the follower is installed properly (I know, but it happens to the best of us). Secondly, make sure that the follower spring is fully inserted into the floor plate, and Thirdly, make sure that the magazine box is properly flush against the bottom of the action (that problem occurs a bunch more often than you can imagine). If those three things don't rectify the problem, then your rifle probably wasn't right when it left the manufcturing plant in Conn.