Certainly. But it does make his statement that a ring bulge always indicates an obstruction all that much more remarkable.

That sweeping conclusion, circa 1930's, has yet to be proven wrong.

Microphotograph, scan, dissect, analyze as you wish.... we first saw pretty well defined evidence of a bulge just in front of where this barrel failed. We 'speculated' it was an obstruction based on Sir Maj. GRB's ancient teachings.

Drew, at his own expense and as a service to us who wish to use old guns in a safe manner, has confirmed that the old master was indeed correct.

This is a significant contribution to the art and science and history of the shotgun. Bravo again.

"The price of good shotgunnery is constant practice" - Fred Kimble