Jerry, Lefever commonly advertised Tapered Bores. Given we don't see them that often, but the gun's conditions don't seem to reflect the need to take out .020 " [that's a lot] in the bore diameter. I think the Crossbolt Lefevers were in a period beyond black powder and corrosive priming. Even if the guns had been aftermarket altered, I would assume they would not have been altered in a tapered way as I measured.

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