I personally would not be able to alter a perfectly good 30-06. Instead I would find an excuse to buy the second rifle
That don't always work, at least for me. You just end up with a ton of Model 70s.
I've been looking for a Model 70 to build a 260 Rem. Found the perfect candidate, a target model Model 70 from the CMP Auctions. Everything I need already set up............the problem is its in 308. Too good of a rifle to re-barrel (even though I don't need another 308.......but who wants to screw up a good target Model 70.
So I'm getting a 308 Model 70 and still have to find a Model 70 to make a 260.