Ed - Them PBs can get expensive. I would take Cayugad's suggestion of 300 gr .430" XTPs and the Harvester Green Crush Rib sabot with 80 gr of Triple 7 of FFg. I prefer the FFg as it is more accurate in my inline.
Also, be sure to get the Crush Rib sabots - they are much easier to load. Tight but not too bad.