I know it wont transpose to mine, but what is your load?
43gr 3f Old E, RWS caps, RCBS Hogdon sized to 576, Lard/beeswax lube. It might work for you but a couple things in shooting any minie hold constant- pure lead, size to .001 under bore, lube, good quality powder and caps meaning Swiss/Old E and RWS or Schutzen caps. If you want accuracy, you'll have to ante up for quality components, there are no free lunches.