I'm doing 45 colt shotshells right now. I took the easy way & have 50 of the empty Speer capsuls from Midway. I cut open a few older shotshells to get some #8 shot. Speer includes data with the capsuls. I plan to use 5.7 grains of Titegroup & the COL as listed. I have the cases primed,capsuls filled & ready to charge & do the rest. It's been so nice though I've been outside most of yesterday & maybe today too. I have a 4 5/8" Blackhawk & the buddy has a Judge. I'd take the Ruger over a Judge any day.
I've even read about a guy taking a 410 shell, cutting it shorter, taking 1/2 the powder out & shooting it in a 45 colt chamber. You would have to reseal it of course. No I'm not recommending doing it, I'll stick to 45 colt shotshells.