With a Savage action, for extra cost to replace the bolt head ($25 if you wanna rebuild bolts every time, ~$75 ish to just under $100 if you have pre-built heads sitting on the shelf like most of us) and extra cost to replace mag boxes, followers, etc, as long as you have a large shank action, you can swap basically any cartridge for any cartridge, even change cartridge length (starting with a long action). At that point, however, you have a pretty expensive parts inventory, and had to do some custom fab work.
A guy can do the same in a Remington, Ruger M77, Winchester, or Mauser too, but it costs more for complete bolts in these models - a lot more. I figure $200-250 per bolt in this case. This lets me use the same exact rifle to hunt smaller game and practice with using 284win then turn up the juice with a .300rum, all in the same action, stock, trigger, and scope. Two bolts, barrels, mag boxes and followers, and a lot of smithing for feeding.