had some free time, so i thought i would measure blackpowder.i know its said you should use volume measures that we buy for loading but i used them then poured it in my POWDER SCALE to weigh.i started at 50grs.in measure, it showed 50 and 1/2 gr.this may have been my scale was just a hair off.i then went up to 100grs. in measure, poured it in powder scale, and here was results.60grs was 60 and 1/2,70grs was 70 and 1/2,80grs was 80 and 1/2,90 grs was 90 and 1/2,100grs was 100 and 1/2. i did this over and over trying to see if my reading would change.they did not.I WAS SURPRISED how close powder scale was to the powder measure.i did notice if i tapped the side of the POWDER MEASURE ,the powder scale reading would be a full 1 gr above the amount, say like 50 grs in measure ,tapped, was 51 grs in the POWDER SCALE.this was with 2f of geox.i see no problem weighting your charges with 2f on a POWDER SCALE .anyone like to comment .thanks