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Old November 27, 2020, 09:31 PM   #9
Aguila Blanca
Join Date: September 25, 2008
Location: CONUS
Posts: 15,908
Originally Posted by T. O'Heir
BP is measured in grains by volume not mass.
Grains is a unit of mass, not volume. Since it isn't possible to measure mass by volume, your statement requires clarification.

The Perfect Powder Measure doesn't measure mass (or weight). In fact, it doesn't "measure" anything. It is set to discharge a specific volume with each stroke. So if black powder is to be dispensed by volume, just set the PPM to discharge the required volume. But you'll need some sort of calibrated device that measures volume. If you want to check the weight, you have to throw a charge into the pan and put the pan on a scale.

Just like with smokeless powder.
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