Originally Posted By: PA24


Fox used Chromox steel (marketing name) on the barrels NOT the receiver forgings.......


pa24, you're wrong on that. beginning with intro in 1912, 16 and 20 bore receivers were mostly chromox with a few carbon steel here and there. also, carbon steel for 12 gauge receivers was phased out after 1912 and within a few years they all were made of chromox too.

first poster with the question was bbman. what say the site experts? what's he supposed to do now if his annealed receiver is chromox steel but with unknown % of alloying elements?