I was wondering if anybody here is using the RCBS handy dandy rotors. I was loading my .45 brass today and in the chart it states that a #10 rotor will dispense 6.9 grns. of Power Pistol. In fact, after weighing about 10 rounds the most I could get was 6.7grns. of powder. I wanted 6.9grns as it is a hot powder and the max load shows 7.3 grns. Since Alliance has bought out Olin and Winchester and are a major distributor of powder, have they changed the composition of the powder? In other words, are they making it more flaky than what they used before. In using my other rotors for different powders, there may be a .01 grn. difference than what the chart shows and the actual amount. I am very diligent when weighing my powder. I wonder about W231 vs HP38 as they are supposed to be the same, however, I believe that the HP38 is a little more "grainer" than W231? I loaded 50 rounds today and will try them out on Sunday. I know it's better to be lighter than heavier, however some powders have seemed to have been changed. Does anyone have any experience with the rotors and if so, what rotor can I use to take it up to 6.9-7.0 grns. with out using the trickle powder dispenser after emptying my rotor? Any advise would be greatly appreciated!