Thread: QUESTION ON PROOF STAMPING ON FRANCOTTE HAMMERGUN
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Unread 04-08-2024, 06:52 PM   #2
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David C Porter
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65mm= 2 1/2" or 2 9/16" chamber lenght.
20.6MM= Chamber ID, .811"

Chamber dimensions in millimeters shotguns undergoing smokeless proof. Length of chamber over diameter of chamber
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