Ouch, that is the worst type of failure that can occur. I wonder if the shell was a reload or factory ? Even if the ductility of the steel was wong, the barrel should have split only. That large of a piece missing tells me that the failure was due to an extreme overload or bore obstruction.
Had the barrels been original (Damascus) they never would have launched a piece of steel like that. It would have been a hell of a buldge, but they should have stayed together.
Brad.
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