For a hot load. I like IMR 4227 myself. Little more forgiving and has a little less barrel flash than Win-296-H110 and even Blue Dot. In high intensity applications it's a hard one to beat.
On the mild side. I prefer Win 231. I've always considered it to be one of the best Mid Range powders ever made. Versatile and very clean burning.
"JUST A OLD DEPLORABLE THAT'S IRREDEMABLE."