3 8 Terry-length Everclear grains for 54mm cases, with 0.625 inch cores,
4 cast as four 6-inch-long double grains with 0.5" delrin coring rods, then
5 cut, cored, and trimmed.
7 The 54mm casting tube I'm using weighs 1.84g per inch.
9 Third time mixing APCP propellant. Again used the 4.5qt mixer and hand
10 packed with no vacuum processing. Same formula as previous batches.
12 These grains were cast on 2019-05-21.
17 * Grain 1, " long, g gross, g casting tube, g net
18 * Grain 2, " long, g gross, g casting tube, g net
19 * Grain 3, " long, g gross, g casting tube, g net
20 * Grain 4, " long, g gross, g casting tube, g net
21 * Grain 5, " long, g gross, g casting tube, g net
22 * Grain 6, " long, g gross, g casting tube, g net
23 * Grain 7, " long, g gross, g casting tube, g net
24 * Grain 8, " long, g gross, g casting tube, g net