Quote:
Powder measures measure volume. They are very consistent at measuring volume.
When you are near full case fill, a volumetric load is often just as accurate as a weighed charge. With a stick powder in a rifle case (and a 20" or longer bore) even a .3 grain spread isn't much to worry about most of the time.
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^^^this. A powder thrower is no different than the dippers the OP had been using. Basically it's just an automated dipper. Lots of folks dish Unique because they claim it meters so lousy. But it meters to volume quite well and in my own personal tests of weight vs volume loads, those charged by volume were more consistent than those charged by weight. This was with both velocity and accuracy. Now powder that bridges in the drop tube or is hangin' up in the hopper due to static cling is another story.