Don't recall that we were ever given a maerking for the gauge of the gun in question. If the bores still measure what they did when built then one would have been marked 16 & the other 15. Prior to 12887 there was no 16/1. With those bore sizes after 1887 but prior to the marking of actual diameter they would have been marked 16/1 & 15.
SDH
Incidently I have never in my life worked in a proof house & measured a bore with an "Official" plug gauge nor stamped its size on a bbl. I can however still speak with some reasonable amount of intelengence on the subject. While true I have never had a reason to jug choke a bbl, as I stated I wporked for 35+ years in the machinist trade & have certainly performrd far more complicated tasks than putting a little ol jug in a shotgun bbl. I can assure you I could perform that simple task without removing the breech plugs.
I have an equal hatred for folks who think "Their Way" is the "Only Way". I thought everyone knew there were at least 4 ways to do anyrthing.
