I have no such powder. I choose the best performing powder for each of the several cartridge I load for and rarely use the same powder in more than a couple. If I was willing to limit my ammo's performance I'd just stick to factory stuff. YMMV.
I use 231/HP38 or Unique for most of my stuff, and could probably do everything I need to do but not what I want to do. For that I need my 296 and longshot as well.