If you're going to load a bunch, the ball powders (TAC, CFE223, ...) might be a better choice than extruded powders?
I use a Lee Perfect Powder Measure to drop TAC and it's very accurate.
Ball powders don't get any better with volume.
As long as you watch out for bridges, thrown charges of stick powder can be more accurate than thrown charges of ball even if the ball is all +/-0.05gr and the stick is +/-0.2. That, and you get better temp stability.
ETA: I've been throwing ARComp and it seems to be +/-0.1gr. 8208 throws very well too. And Varget, it doesn't matter how bad it meters, it still shoots bugholes.
