flow thru a powder measure

[41cal]

How well does unique flow thru a powder measure? I usually use unique for low velocity target loads. I am thinking about buying a progressive press and was curious if the flake type powders will flow well and throw consistent charges?
Thanks for the info.

[Edubya]

I've got Unique in my Dillon RL550 right now. I've loaded a couple of hundred or more of 8gr-10.5gr in the .44mag and never had a problem. I do check every one of the first ten to verify and then about every tenth one or so after that.
I'm getting right at 900 fps with 8.5 Unique out of a S&W 629, 4". Pretty accurate and little to no leading. I use Lar's Carnuba Red.
EW