Illhunter, I shot round balls in my side kick and they worked pretty darn well with 50 grains of APP. It think instead of working up a load...you should be working down a load, if you get my drift! --lol Remember with a round ball there is really VERY little touching the rifling unlike a power belt, bullet or sabot and its very easy for gases to just blow by the bullet instead of launching it gingerly and having it stay in contact with the rifling.