I'm interested as well Frank! I see on Alliant's web site that they do show some loads for the 45 colt and the acp as well. Got me to thinkin....
They now also claim that red dot is cleaner burning----comments anyone???
I've never used it for handgun loads myself but remember reading a few articles by gun writer Mike Venturino praising Red Dot as a very accurate powder for .45 Colt loads. Think many if not most of the manuals have data.