Not really familiar with Kimbers, but...
Why not get a custom barrel or a couple and be set for whatever your needs might be?
No real need to spend several thousand on a hunting rifle when can do better outsourcing the parts yourself. Not like you're going for a super-precision piece that needs all the custom "truing" touches. Never worth blowing a lot of money at a production action; but for a hunting rifle???
Get the barrel off, take a depth micrometer and measure from action shoulder to the bolt face and to the bolt nose (the rim that encircles the cartridge base. With those 2 measurements Pac-Nor or whoever you choose, can chamber and thread your barrel into a ready to install, ready to go custom barrel that will shoot the daylights out of any factory stuff.
A 6.5x284, your .30-06, and a .35 Whelen or 9.3x62 and you would be set. Have seen some custom die sets around for 338x284, .35x284, and 9.3x284... Go 6.5x284 and any of your larger choices and you got the world by the tail...
If you look at the last hardcover Hodgdon manual, they give identical load data for .30-06 and .30x284. Very versatile ctg. Better than standard .30-06 for bullet seating flexibility with long heavy bullets, already has the 35deg shoulder for less trim worries.
Kimber Montana and Talkeetna models are supposed to be pretty nice rifles... Why not put your money where it matters for shooting, and go custom barrel?
