Not blown barrel but bulged cokes. I was using my Savage 311 on a duck hunt and ran out of shells. (this was back in the late 1990's when is was still legal to shot lead at migratory birds) My friend passed me few shells which I loaded and shot only to find they were 3" steel and of course the cokes within 2 inches of the muzzle bulged on both barrels.


Nothing is foolproof to a sufficiently talented fool.