Thread: 1881 12 GA Lifter
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Barrel thickness
Unread 05-04-2010, 09:18 PM   #7
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Austin W Hogan
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Default Barrel thickness
Choke began to be fairly regular after s/n 10000 or so. Early Parker full choke was .032 that is 1/32 inch. If the barrel was .030 thick behind the choke it would be .046 at the muzzle- more than a millimeter.

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