I think im going to post 8 targets out at 40yds to start with. I will try 4 different loads out of the 54cal and 4 different out of the 58cal and go from there eliminating the loads with the worst groups. I know my 54cal shoots both a .530 ball and 100gr real accurate and a 425gr Great Plains conical real accurate. I need to play more with the 58cal ball loads. Who knows. Some time at the range will tell me what I will shoot.