IIRC, there was an article in a shooting mag years ago about this problem. As the powder level drops in the measure, the charges will get lighter. To maintain consistent level , place a funne lin the top of the measure. Fill the measure with powder thru the funnel and fill the funnel. As the powder level drops, keep adding powder to the funnel. This will keep the level consistant in the measure. Just make sure the opening in the funnel is large enough to let stick powder pass thru easily. Hope this makes sense. I work 3rd shift and I'm having my wakeup coffee.
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