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**James K** · December 13, 2012, 10:10 PM

I don't think it was part of the barrel as the "rifling" is reversed. I think it is a part of a bore lapping machine, made to fit into a rifled bore.

Jim

December 13, 2012, 10:10 PM	#3
James K Staff Join Date: March 17, 1999 Posts: 16,617	I don't think it was part of the barrel as the "rifling" is reversed. I think it is a part of a bore lapping machine, made to fit into a rifled bore. Jim __________________ Jim K