I use several different powders for .32's and .38's, all are the fast burn rate. Because pressure is low most will burn dirty. You can use almost any fast burning powder, my favorite is titegroup because it is not direction sensitive, friend loves trail boss in larger cases because he likes volume. Most loads for the old 32 rounds are really weak to keep pressure down for the old revolvers. With powdercoated bullets in modern guns the max loads will still burn dirty because pressures are too low to give a clean burn. Will not give loads I shoot in modern guns but some well over max without any pressure signs to get hot enough for clean burn. As a side note Corbin that makes bullet making dies and presses mentioned shooting full wadcutter rifle bullets. Made and shot some in 22 and 17 calibers to out past 100 yards from varmint rifles. They drop more than varmint bullets of same weight with same load. The higher B C of the pointed varmint bullets gives better trajectory. The full wadcutter bullets still shot M O A groups at 100 plus yards. Wind does have more effect on the full wadcutter. The flat point causes the velocities to drop faster due to resistance. That said at 100 yards and less the full wadcutter can be a very efficient target round. 50 yards and less they are a favorite for many target shooters. The full diameter cookie cutter holes are easy to score. Forgive the rambling, enjoy them, have no clue how many thousands we have shot over the years.