I was at my local gun store today when I mentioned that I had just bought a new Browning Stalker 30-06 W-Boss and the Clerk asked me how it shot and I told him I hadn't shot mine yet, so he showed me a couple of cases that he had shot out of his new Browning Hunter 30-06, that had a slight buldge at the base of the case after being shot. He tried a couple different Factory brands and they all did it, so it wasn't the ammo. Anyone ever have this happen? If so, what causes it should it be sent back to Browning or can a gunsmith deal with it?