my little bro just bought a brand new remington 1187 (yeah i know hes a browning trader but can you do). at first the gun worked fine, but after the first few boxes of shells it started to jam.just wondering if othershad this problemand what to do to solve it. thanks

I would suggest that he should check the o-ring and make sure it is still intact. Sometimes they can get pinched and leak gas. Other than that, contact Remington.

Clean it, and check the o-ring.