The weights were checked against 3 scales. check. The FS were weighted against 2 scales. The third scale started at 1 gram. The powder scale was the most accurate as it did 2 places. Just a side note. When my revolvers went from 40 caliber to 43 caliber (.2 difference in weight) the revolvers did better at 20 yards. Even the 3" barrel. I have shot well over 10000 rounds + of .40 caliber. The difference was quite obvious.
Whatever your hand finds to do, do it with your might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, where you go.