Since you already have the 30-06, then I would definitely get the 7mm-08. I have a 270 and 30-06, so there is a bit of overlap there. At one time I wanted a 7mm-08, 280, and 7mm Mag. If you shoot 140's in the 7mm-08, 150's in the 280, and 175's in the 7mmMag, the trajectory is the same. I believe the action is the same length on the short and long calibers in the tikka, so you dont save much on weight.