You can fit pretty much any short action round into that action. The WSM rounds are normally put in a large shank action and I'd bet yours is a standard shank.
You can also fit most long action rounds into that action, but it would be a single shot and you'd likely need to pull the bolt to eject the longer loaded rounds.
With any of the above, you'd need to change the bolthead to the new cartridge and screw in a new barrel. Both 10 minute jobs.
Specific info on savage's can be found over on the savage shooters forum
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