Changing out barrels is a great benefit on a truly modular outfit. I have a few barrels, about 2 minutes max on changing out and no sighting in required. Great travel outfit, and broke down fits in a short Pellican.
I know the price is higher than your average bear, but you don't have to do a thing to it. Not like buying a Remy and then having to do 1k worth of upgrades, and you still only got one barrel.
Here's a 300WM and a 243 that has done some traveling.