I use a .3 LEE dipper and Unique to load .32 ACP. It dumps a nice mid range load for poking holes in IDPA targets, cans, shooting steels, etc.
My LEE auto disc measure has problems with the dinky charges that the .32 takes. The dipper is fast and very consistant.
I have yet to use them for black powder charges but will be doing so for .38 S&W and probably .45 Colt in the near future.