Made my first batch of red gum black powder per skylighter inst. Was impressed at the speed of the powder without doing any ballmilling. As far as Fa and Fg is the size of the grain the only diff. or is there any other differences. I know that they use a different scale.
I have seen differant answers to this question. I have seen 3-1 meaning say if you had 100 grams of rice hulls you would use 300 grams of black meal powder is this right?
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