I’ve always been one to fill the powder hopper whether on my MEC 9000’s or my P/W 800 Plus and then tap it several times to “settle” the powder. Learned a long time ago that the first few weightings to verify the powder bushing could be significantly heavier than those when the machine settled down to normal operation. That can drive you nuts when trying for an accurate average. Net, I’ll dump the first few drops back into the powder hopper and then weigh an average of at least 6 drops to check the charge for that bushing with that powder and lot.
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