After hearing from Bob in the Woods, I believe I will tote my nice English double 10-bore. Back-up shot ready already in the left barrel.
I used to reliably hit 10" targets at 200-250 yards, every time. Alas, that 10-bore must be wearing out, because now, at age 75, I find it to be unreliable at any longer distance than 100 yards. And looking at that old double, I better bring that upper limit back to about 70 yards. Shame these old guns lose their accuracy with the passing of the years.
For deer, I do have a pair of 20-bores that actually shoot pretty well. And hopefully, by next hunting season, I will have a nifty .62 cal Jaeger all ready to go.