Thread: 10 Gauge Parker
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Unread 04-02-2010, 01:39 PM   #39
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Bill Murphy
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In that serial number range, your gun could have left the factory with bores at approximately .775 or they could be bored at approximately .795 to .800. Anything much over .800 would be considered a gun that had been cleaned up. If your gunsmith does not have a bore micrometer, he is known in the trade as an average gunsmith, not one to work on or evaluate your or my gun.
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