I went through this recently with the following results in a 300WM Tikka T3 Lite:
168's - Pretty nice groups and very little recoil.
180's - Shot ok, not as good as expected. Recoil noticeable.
200's - Groups under 1/2" on both Partitions and Accubonds with IMR 4350. Recoil fairly well pronounced.
Any good bullet will do the trick. Depends on "how" you want to do the trick (recoil level, distance, game, etc). I will likely end up using the 200 grain Accubond as I have smaller caliber rifles for other stuff and I want this one to be my longer distance/wind buffeting thumper.
