I have been shooting some round ball and Hornady .45cal (240gr) sabots outta my Pedresoli .50 cal Muzz. My question is do I keep upping my load of powder to find best results for grouping? I seem to be kinda all over (6-18" group) I was running 70 gr of FFG. What's your suggestions. I know that the round ball on the sabots will preform different of each other.