Absolutely nothing wrong with weighing Blackhorn powder. However, my loads i always measure by volume.

110g of Blackhorn is supposed to weigh 77g, so it would seem a weight of 73g would result in a light 110g load. One thing i have noticed, is different lots of Blackhorn do have different densities. When switching to a new container, one may find that the weight-volume ratio changes. It may be one needs to re-establish one's load when opening a new container with a different lot number.

One nice thing about Blackhorn is the size of each granule is very very consistent. This lends itself to accurate measuring by volume. Seems it also lends itself to accurate measuring by weight...