I have a pound or two, each, of Pyrodex, Clean Shot, Clear Shot and Black Canyon that I would like to shoot up in plinking cast loads in the .30WCF. Back when I was into black powder, we were very careful not to allow a "separated charge", where the ball was not seated completely down on the charge. Since I want a reduced load at around 1200 FPS, do I have to worry about partially filling the case? Would anything less than a full case constitute the hazard of a separated charge?