Gary, Great painting. I initially thought it was a John R. Cowan.
I'd shoot a .410 opening day but for the fact I like to eat dove and in that I can't eat what I don't shoot, I best move up gauge a tad. smile It'll be a 1920s Darne R-10 in 16 gauge with my Ithaca M37 16 as a back-up gun. I'll shoot 7/8 oz. Polywads, #8 or #7.5 out of the Darne. The Ithaca shoots Herters 2.75" 1 oz. #8. Gil