Two (in fifty years).
A Charles Lancaster damascus double that had both tubes blocked with snow/mud and bulged just aft of the muzzles; the barrels were cut back and the gun continued in use. During WWII when ammunition and meat were equally scarce it was employed for deer shooting with home bodged cartridges loaded with ball bearings; you can see the score marks to this day. Bubba is not just American and he is certainly very old.
A modern era AYA double which bulged on one side of the right barrel; cause unknown (or not admitted to!) but I suspect it was fed on steel shot and didn't like it. A gunsmith knocked it down and it's still in regular use.
Eug
Last edited by eugene molloy; 12/30/13 06:14 PM.
