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Inconsistent powder charges...

New member here, and I briefly searched for a similar post to this one prior to posting this with no luck. So, forgive me if this topic has been previously posted.
I have found that when using Unique powder that I get some inconsistent loads. Shooting for 4.6, I would get from 4.3 to 4.8. I am reloading 9mm plated rounds, and I have not noticed this problem using Win WSF. Is it possibly due to the large flakes of the Unique not dropping properly?

CFDBattChief

You are exactly correct. Due to the very large flake size of the powder, a +/- .2 grain variation is normal.

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