RE: Problem w/ my new pump jamming.....
Had the same problem with my Ithaca 12 gauge deer slayer model, Im 3rd owner so its been around, after 1 or 2 shots shell used to jam TIGHT, but fixed that pretty easy believe it or not i used T/C Bore Butter & cleaned the inside pretty good I'am on Hmmm 40 rounds with no jam .........Stuff is amazeing..
Raymond
P.S Your guns new take it back & get another, But i read up on those stoegers for the price you paid, that's was one of the common problems with that model or just buy a mossberg !!!