i have a problem with my stevens 350 shotgun.. after i shot about 20 rounds out of it I cant stuff more then 1 slug in the gun at a time.. at first i put it one slug after another and all 4 went in very easy.. now when i stick 1 slug and try 2 push another one in behind it i cant??? basically i stick 1st slug in and try to slide one in behind it and it dont push in?? please help thanks and please dont give me crap about it. i got in a trade...