A local shop has a 1970 12 ga. Superposed in for cleaning. Both barrels, upper more so than the lower, have a ring bulge about 2 " in front of the forcing cone. These are old bulges. Gun has been shot regurarley for skeet since the damage. The current owner does not know how the event occured that caused the bulges.

Question is: Exactly what sort of safety danger do theses bulges represent in this location. My opinion is it is a danger only for another pressure spike event.

What say you all!

W. E. Boyd