Density of FFFFg BP?

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Well-Known Member
Jan 18, 2009
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Does anyone have an approximate density for the black powder we use in our recovery systems? I have some BP canisters for which I can calculate the internal volume, and I need to estimate how many grams of BP each one holds.
You're right. This morning I found some density figures in grains per cubic inch at this web site (, and GOEX FFFFg calculates out to 0.93 grams per cubic centimeter.

And it turns out I don't need to calculate the volume of my canisters, they're marked in cc's on the side. Near as I can tell they're 3 cc canisters. Probably centrifuge vials originally.
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