Powder shapes grain vihtavuori grains gunpowder types gun shape tech shaped flake shotgun less scott 8th of an oz may 2020 Grains ggg heavier
GGG First Look - Part 3 - Components (and the extra 5 grains)
How Many Grains Of Powder In 1 Lb
Chart conversion grain ounce ballisticproducts oz bps 8th number price may quantity Ggg first look