dakatayote
I load 3 1/2" Remington 10 gauge hulls with a CCI 209 primer, 47 grains of Winchester 571 powder, Remington SP10 Power Piston wads and 46 pellets of homemade #4 Buckshot (2 1/4 ounce.)
I use to use Winchester 540 powder but in the patterning tests that I did, the loads with the Winchester 571 patterned better. It just depends on what your gun likes. Shotguns will really change there pattern from one type of powder to another.
I see you are from South Dakota. Born and raised on a farm near Revillo, South Dakota until I moved out here in 1980. Still miss S.D. except for shoveling the snow in the winter.