I agree with the .338 being in another class. But to turn a Remington action (or Savage, or whatever) into a .338 Edge all you do need to do is screw on the barrel (as long as it has the right bolt face). That's what my Edge was, just ran it as a single shot. Now if you want a repeater that is a different story, and a bit more work (money). My buddy's Edge has DMB and I really don't care for it, as does my Snipetac.
I'm thinking about getting an Edge barrel for my Savage long action and screwing that dude on. For that matter I know a fella with an Edge on a Savage short action, just can't eject a loaded round without pulling the bolt...shoots great though!