Tony,
An acquaintance of mine lost his left thumb and damaged three fingers, about six weeks ago while shooting at a local club. The rifle was a J. Manton, Calcutta, .360 #2 NE, with Jones underlever. The left barrel burst at the breech face and peeled up and forwards for about 10 inches. He was shooting handloads using IMR 3031.Whether it was an overload or one of the mysterious "detonations" we will never know, because: The local constabulary, geniuses that they are, were unable to determine if the right-hand barrel had been fired. So they called their bomb squad who took the remains out into a field and blew them to smithereens with an explosive charge!

Best,
Ron.