If using it for a bench rifle and not a DGR, I'd opt to use a Remington 700 and open it up for the Lapua. Chris or George may even steer you in that direction too. It's a great action, just not the better of the two for a bench setup. Locktime, the claw extractor etc make it less desirable in that field.
Here's a pic of my M700 30/338 Lapua Imp that I finished up a year ago.