Picked out a couple of guns for a wipedown tonight, and one is a graded 12 bore Baker hammerless, with beautiful Damascas tubes....I looked down the bores, and discovered what I thought was a scratch, straight down the length of the left barrel, from the forcing cone to about 3 shy of the muzzle. i assumed it was a leave behind from tha last bore swab, so I ran a bore snake thru it about a dozen times....it looks to me like a crack, almost perfectly straight, that appears to be right on top of the bottom rib edge.
Anyone else seen a failure like this?.