So I've got a browning a-bolt 270 that I love. I shoot with it all the time and I hand load for it. But I know that eventually its going to be time to re-barrel it. I would like to go to a different caliber when I do and I'm looking really seriously at the 300 win mag. I have limited gunsmithing experience so my question is if I get a barrel chambered for 300 win mag, and a bolt/ bolt face for 300 win mag would that be all I need to do? Just looking for some guidance as to if this is how to do it and if not what do I need to do to make this work? Is it even possible at all?