What masochist would even consider shooting a 3 oz. ten guage shell in a modern gun? (nobody would shoot them in a vintage gun, I'm sure) I think shooting an 8 ga. Parker would be
some fun and at something like 15 lbs. would absorb the vast majority of felt recoil. I say "have at it" to those who wish to use an old 8 ga. for hunting, where legal of course. Somehow I don't think I'd like to lug one through the grouse woods though