The Tradition's Pursuit should be a good shooting rifle. I too would suggest some Triple Se7en 2f or Pyrodex RS. The difference being, the Pyrodex is more corrosive and might need more careful swabbing of the barrel, although it had excellent power, good consistancy, is cheaper normally, and is a dependable powder in high humidity areas. Start your testing of the rifle with about 80 grains and work upward from there. The rifle should tune in between 90-100 grains of powder but all rifles are different, so who can really guess.

As for projectiles, 245 grain Powerbelts, 240 grain XTP Thompson Center Mag Express, 300 grain T/C mag Express XTP's, or 250 grain shockwaves should work in the sabot department. In conicals you could try maxiball, or some Great Plains Conicals if you like to throw big lead around. No telling what the rifle will like.

I am sure you are going to get some good advice from your father. Swab the barrel between shots on the range, and learn a good load. Since you're a bow hunter you know, after that it is all about placement of the shot. Good luck.