From FAQ:

Q: What is the action screw spacing on the Savage Axis?
A: All Axis models have the same overall action length and have a screw spacing of 4.800". Those chambered for S/A cartridges use a S/A length magazine and trigger guard piece while those chambered for L/A cartridges use a L/A length magazine and trigger guard piece.

This means if I have a 308 Axis and want to swap to 270 all I need is a barrel, magazine and trigger guard? Have 30-06 and 270 barrels so all I need to find is a magazine and trigger guard, get head space gauges and swap parts.