Never had any dealings with these type guns.

I looked at the chamber dims and where the .410 round measures .478" the .45 LC measures ..480". Are the chambers also cut slightly oversized on the .45/.410 guns to accommodate that?

Was watching a video about the Pedersoli replica of the Ithaca Auto and Burglar .45 LC/.410, with rifled bores, and just got to wondering about the combination, and how it is accommodated in the same gun.

SRH

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