Another "home-made" trick- get two fired empty cases- RST paper are my choice, as paper hulls were the rule back when you Smith was built- Get one as 2&1/2", and one as 2&3/4"-- chamber them, but at one at a time, close the gun just as if you were going to shoot it, but then open the breech- see which of the two hulls the extractor or ejector clears easiest-- and remember, a modern 2&3/4" shotgun shells measures 2&3/4" after it has been fired.
My shooting pal is returning my copy of the Bible for L.C. Smith collectors, the Houchins' book- But my gals are getting me the new Smith tome on production and serial numbers, written by the "Numero Uno" L.C. Smithian extant, at least as far as research and accurate data are concerned. I shall devour it and memorize all salient details therein--
