I reload several calibers in a typical setting and I like to have several Lee perfect powder measures set up to accommodate the various charges. I made a turret from an old lamp base and a sheet of plywood to hold the powder measures. A strip of blue painters tape can record the powder charge for each unit. I never fill more than one at a time and empty each when I am done with that caliber (easy to do with the Lee measures). The Lees are cheap and I have found them accurate - even with flake powders that cause fits with my RCBS.