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63.64%
27.27%
9.09%
screen kno3 and S 3 times through 100 mesh then screen in C at 80 mesh. This formula works well in 1/4,1/2, and 5/8 id rockets. Press to 6500-7700 psi for best results. (ie. 5/8 will lift 130g to a very usable height)
Author: Petro
Source: http://www.passfire.com/