You gotta use enough gun to do the job, man. You risk a pea shooter like that on dangerous game?
I would play around with some empty cases to see what circumstances will cause it to jamb like that. My 1st thought is what you thought - some crud had got in the action.
One of my buddies used to have terrible luck with all of his rifles and shotguns when he came across the game he was hunting. One time when we were turkey hunting, he ejected the shell out first, then tried shooting when the shotgun was on safety. Of course, it was the shotguns fault... Another time, he shot and fired everything in the magazine and missed every shot. Of course, the scope must have been "bumped"....
Some guys just have a lot of "issues" when it comes time to take the shot. It's always the "rifles fault" though..
