I'm aware of what the site provides. I've shot it since it first became available and can go through 5# of it in less than 3 months. My reloading room has 28#'s of it setting there now.
The Blackhorn tubes and the scales marked on them are WRONG. Nobody should use those marks, and I have no clue why they haven't removed the markings on them before someone gets hurt.
Look over the top chart again. With a quality volume measure, and it set at 120grs
, those weights are the average for each lot number. Lots 37 = 94.7grs, 39 = 96.1 and 41 = 96.2grs. All averaged a minimum of 10grs over 84grs.
Yes, 84grs is 84grs WEIGHT.
120grs VOLUME never changes no matter what is put in the volume measure. If you filled the measure with salt, it would weigh a certain amount. Then fill it with lead and the weight changes, however, it's still 120grs volume. Every lot is different because it's an extruded propellant.