Hey guys, Im new to the forum and long range shooting in general. This may be a dumb question but im not sure. I have a tikka 300 wsm stainless. I was wondering, would it be possible to but a new barrel on this gun in say a 300 win mag,? or would i need to swap out actions and other parts? I really dont know how the internals,action and barrel attach and was just thinking down the road if i wanted to upgrade to a better barrel, could i also change the caliber to a 300 win mag?