Asianhunter... you have an excellent rifle. One of the very best on the market. It is Stainless Steel. Your rifle will shoot 150 grains of powder anyway you want to put it in. If your shooting 3f powder I would limit the loose powder charges to 120 grains of loose powder just because of the increase in barrel pressures that 2f-3f conversions produce. Whether they actually do produce these differences I could not say. I never put them over a chronograph. But better to play it on the side of safe.

Some excellent long range projectiles for your rifle would be 120 grains of loose powder and a 250 grain Shockwave. With that load you should have all the power you need to make a 200 yard kill. If you want, you could also shoot 3 50 grain pellets with the same projectile and have similar results. Both will get the job done.

Good luck with that rifle. You sure got a good one there...