Thank you Andrew. A primarily metal failure would be very rare, and quite worrisome.
I've been part of failure analysis and metallurgical studies of some burst barrels
https://docs.google.com/document/d/1...K7G9IBs4g/edit
and Ron Graham evaluated the Vulcan Steel barrels from the Parker VH that had been the subject of destructive testing by Sherman Bell.
I'd like to evaluate your barrel. Please contact me at
revdoc2@cox.net