Back when I hunted pheasants a lot in PA, 7 1/2s were my favorites in an IC choked 12. Not sure why they seemed to do better than 6s, and patterning was a thing I never tried in those days, but they seemed to work very well. My brother OTOH, liked 6s or the 6&4 combo loads.
My 1oz 8s came yesterday. Oughta last me a few months since I shoot 12, 20, and occasionally .410 on clays once a week; usually two or three rounds. Almost out of .410s, and not sure I’m willing to fork over the bucks for more just yet.