Hi im trying to figure out how the factory comes up with rounds. Are they based off of pressure only or accuracy or both. Second im trying to get my revolver to shoot more Accuratly with my hand loads. I ran out of adjustment to raise the front sight so i have to aim high to hit dead nuts. Im pushing a 230 gr boolit with 10 gr of universal powder behind it. Fps are unknown. The pistol is a ruger blackhawk in 45 colt 7.5 inch barrel. Any advise to solve this issue would be great thanks.