I figured I wasn't too interested in RB as it loses it's oomph too quickly. The PB's seem to have lower than expected BC's and cost as much as others that seem better.
As I figure I'll buy a .50 cal Deerstalker with the 1:48" twist I'd try out Hornady's FPB and 385 grn Great Plains conical, as well as the Thor. I'd also try out some sabots to see how well they group, though I don't expect much.
Outside of casting what else is there?