I have two Uniflows. Flake powders only for one set up for pistol. It's pretty accurate for pistol. I only load high volume 223 rifle cartridges with Ball powders using the Uniflow though. It's very accurate with Ball powder. I use an electronic dispenser for hunting cartridges where I'm not doing a lot.
The tip for uniformity with the Uniflow type measure is to tap the handle twice during fill, tap twice during dump, and don't let the hopper drop below 1/4 to 1/3 full.
