Recently picked up a lightly-used Benelli M1 tactical (pistol grip, ghost ring sights etc). I have hunted with both an M1 and an M2 for years with no reliability issues ever. This one, however, does not want to fully extract fired shells. The bolt pulls the shell out of the chamber but not quite far enough for the fired shell to be thrown out of the receiver, leaving just the tip of the shell, where the crimp has opened up, hanging up. Just pulling on the bolt handle gives no indication of any roughness and you can manually pull the bolt all the way to the rear with no issue. Suggestions?