new gun, first 2 shots remained closed, next 2 blew-open the action upon firing. the latch is not engaging more than 1/8" (smoked the latch & barrel catch).. I really want to file the barrel catch(shelf?) so more of the latch engages. Sure the gun is under warrranty but this really seems like a few careful strokes with a good file will fix problem. IDEAS ANYONE?? thanks, gary