I've been looking at a rifle that I can use to work up to long range. I like the Savage 12 VLP DBM in .308 with a 26" barrel. At some point, I could imagine converting it to 300WSM. If I understand it correctly, all I would need to do is get a barrel in 300WSM and then swap out the 0.470" bolt head for a 0.540" bolt head and set the headspace to zero. Is it really that straightforward?