I have only been reloading since 2015 but: -
My heartfelt belief is that one cannot beat the confidence in a well set up balance scale, combined with a web-zoom camera.
Consistency of load is what one is aiming for. The actual weight of the charge is merely academic (within reasonable/safe bounds, of course)
My old 5.O.5 scales, combined with 1066's web-zoom camera will detect a single kernel of Vit N140