I've got a McMillan a3 sporter stock that I really love, but the barreled action is just a stocker 300wm with a sporter barrel. I'm ready to "upgrade" and am at a crossroads between "cheap" using my action and going the remage route, and ultimately buying a 700 clone action. I am not dead set on a cartridge yet but am wanting another magnum of some sorts, the plans are a mile steel shooter. I've got a 338 lapua already (chassis type gun) and honestly wouldn't mind another but i'm not sure my stock will support it. Seems silly to build a gun around the stock but the profile and ft make it a comfortable shooter for me..... any advice?