Measuring powders by volume can be tricky to get the same amount every time.
With flour I bang the cup on the counter to pack it.
With gun powder I use a measuer and treat the measure the same every time if not you will throw off the measurements.
Like if you tap the measuer while the powder is in the measuring chamber.
Then there is the granular size to contend with.
That is about all I can help with.
Worth
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