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Rifle Bore Machining Marks ?
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December 6, 2012, 01:02 AM
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ltc444
Senior Member
Join Date: March 3, 2011
Location: Vernon AZ
Posts: 1,195
Here comes the heretic in me. If it is a 30 cal barrel, shoot an armor piercing round or two through it and a lot of the tool marks will disappear.
ltc444
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