A football helmet huh? Well, I guess it would have to be Dallas Cowboys ? :-)
Very interesting. The only ADC guns that i ever shot was a #1 in .410 and one of the Double Action guns in .357. The .410 was rather mild i thought, but the Double action almost brought tears to my eys, and i shoot a 640-1 .357mag a LOT.
I fear the recoil from the #1 would be horrible with .44mags, but I was thinking of doing what you did and download some .44spls. Maybe a 300 LFN at 600fps???? Well, ok, maybe it is not sooo light, but it would be interesting to watch it float along like a big lead bumblebee and then knock hell out of a pepper-popper!!