I am wanting to get a .300 wsm or a .300 win mag, but don't want to fork out the $ for a new gun. I have a Savage 110 .30-06 that I do not use and a Howa 1500 .243 with a fluted bull barrel. I was thinking that the .243 could be rehcambered to the .300 wsm since they are both short actions. Or could the savage be rechambered to the .300 win and the action hold up to the shock of a magnum? Any thoughts? And any idea how much it costs to rechamber a barrel?