I know it isn't often mentioned when magnum handgun rounds are discussed, and I haven't done a huge wring-out of it, but I have found 800-X to shoot well in my revolvers from heavy 38 Special loads (180s) through 41 Mag (220s) as well as the 44 Mag. It isn't the fastest powder with heavy bullets in the 44, but it has been available which is a lot more than I can say for H110/W296 or Lil' Gun or 2400 - or just about anything else in handgun applicable propellents.
