Looked at a .455 triplelock with British and Canadian stamps. Everything looks right except for the cylinder. Its not bored through like some I have seen, the step in the chamber is past the case of a .455 but a .45 colt round is about .200" too long. A .45 acp case will drop in about .100" too deep. It appears to be reamed for a case about 1" long. Is this normal? If not, could this be a left over .45 special cylinder from the Army trials? There are no caliber markings on the barrel, only patent dates on top. I don't have the Jinks & Neal Book so I don't know if this was one of the converted .44 series or near the end of the .455 series. SN is 4871. I'll send for a letter but that will take a while, any help sooner will be appreciated.

Thanks

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PTLAPTA!