I've been using the RCBS Uniflow for a very long time. It is okay for extruded powder if you use a good cutting technique for every thrown charge. Ball powders are where they shine IMO. I use them for ball powders for my 223 and a couple others and I check the thrown charge about every 10 loads and they are almost always within abou .1 grain of where I have it set. One trick Iearned about using the Uniflow is to keep it at least half full to keep a consistent weight on the channel to the adjustable chamber. Once it gets under about 1/4 full they tend to get a little less reliable in charge weights... the baffles cure this issue..

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