Or a 240 Weatherby Mag. If you're opposed to belted cases then go 6mm/06.
Go with a KS contour. It's a Remington taper that is kind of between a mountain rifle contour (which your Ti has) and a sporter (which measures .66 at the muzzle).
KS will measure .6 at the muzzle vice .56'ish for the mountain rifle contour. You'll only need to open the barrel channel up a RCH.
Last edited by Steelhead; 09/13/14.