I've personally used GD for 45 Colt and 9mm, know folks that use it for 38 spcl, 45 acp, 380, etc. All with lead bullets, as the muzzle velocities are pretty much in the plinking ranges. Little difficult to meter, but it works well enough.
I like it because I can do all my pistol loads AND shotgun loads with the same powder. Cuts down on the inventory I have to keep.