i've been loading with Unique for 38sp for a few months now but when I tried to get my lee auto disk with the charge bar to throw 5.3gr of Unique, it instead gave me everything from 5.0-5.5gr! it's been within .1gr with every other load until now. could my powder just be getting too humid? my house has been rather humid for the last few months. Should I just get a better powder measure? it's on a Lee Classic Turret Note that charge spread was just within approx 30 cases charged for testing. Half of them I didn't let the press turn and the other half I did in order to see if the shaking of the turret turning had an effect, which didn't seem to be the case. I was loading 4.3gr just fine but as soon as I tired to load my next batch it got crazy.