Back in the late '60s while shooting skeet in western OK I had the unpleasant experience of firing a hand load (someone else's load) that had apparently a double powder load in it. BIG bang and knocked me back against the low house. Everyone thought I had fired both barrels at the same time...which I had not. The barrel (left one) was bulged in the chamber area with the center of the bulge pretty much in line with the center of the chamber. I would not care to try that again!!

Sam Welch