21/4 ounce of #71/2 shot over an alcan pgs with alcan fiber wad. 58 grains of alcan AL-8. Include a plastic quick sert for shot protection. Oh, by the way that was in my double 31/2" ten guage almost 40 years ago. Kicked the snot right out of you though.
I have to second Hoosier Daddy on the 32grs of 4756. You could substitue the wad he recommended with a Win F114 in a Federal hull. Another alternative I like is using the same powder charge with a Versalite wad and 1 1/8 of 5's or 6's. I don't believe much is to be gained with more shot.
here's my favorite Annie's... Load. 17.5 grains Clay's powder, Windjammer wad, W209 primer, ounce and an eighth of 7.5 shot. Been pickin' the boomers out of the line for the last year with this little hummers... You don't need anything above 1200FPS for these games. Others will disagree I'm sure. OH!! forgot to mention, I shoot the same load in singles too...
27.5 gr. 800X 1 1/2 oz. of hard #5 shot - Federal hull and Winchester #209. Good for 100 plus yards if put in the right spot. If the wireguy is from San Diego area, I think he has seen this load at work at the Kern County Gun Club. Penn's load is too fast for #6 shot. 5's or 4's would hold together much better.