Hi,
Dunno how much Red Dot I loaded in shotshells ( but it was a LOT!) but never tried it in any handgun cartridges. I moved on to other shotshell powders, so don't even have any RD to try...
A buddy, though, still had plenty of it left when he put his trap gun in the safe and brought out his Model 39 Smiff. Even at 100 yds, w/ a starting load of RD and a 125 gr cast bullet, he's deadly enough on cans w/ that 9mm to know it's a little more than pure luck...
Red Dot's pretty "fast" but the old version was still pretty dirty. Dunno how the newer "cleaner burning" variety lives up to its promise.
Rick C