RE: Which powder measure?
Steven, I haven't found one yet that dumps it accurate to .5gr every time. I used alot of them. If you loaded for 20 years, you have much more experience than me.
It also is cartridge and powder dependent. Ball powder can be thrown accurately. But flake and extruded, I have yet to be happy. For my pistol reloading, the Lee disk powder thrower, seems very accurate for pistol only.