I was going through my selections of powders lately and what i primarily load is unique, power pistol, and 2400. So i have been using flake, and stick powders. I am thinking of adding a ball powder or two i shoot .38/.357 and 9mm in pistols. I have heard that ball is more hard on revolvers than either flake or stick is this true? any with more depth on this please chime in? I have used the search but had no luck, perhaps overlooked.