Thank for the help, folks. I thought, from prior threads on this site, that it was the .323, but I wanted to run it by the experts here, first, to confirm my belief. The bores are fine - better than fine, actually. Genau spiegelblank, in der Tat. My smith is also my FFL, so we went over it in some detail when I picked it up. Just didn't think to slug the bore.
Thanks again!

fiery, dependable, occasionally transcendent