Craig, in your email, you asked about bore size from factory, and I said I believe it was .775 even for the Syracuse L.c. Smiths. I know the Fulton ones were and I had seen a print of the bores and most were +.000 - .002. That goes for all of the L.C. Smiths. In most of the 12 ga. that I have measured all hammerless were .727-.732. The hammer guns, some were as low as .724 but none higher than .729.
As I stated on the site, beware of any of these old guns with "shiny mirror" bores, you can almost bet they were honed out.
I would have them measured again, just to be sure, and to give you peace of mind. Plus I would buy a set of Gage Mates down to 12 ga. and get even lower psi loads.
Good luck and let us know how you make out here and on the LC Smith site.
