Why not contact Savage and get a new heavy barrel in 300 win mag or 300 wsm
? cheaper in long run. You can rechamber but not a lot of gain for $. With good load workup you can still be well under 1 MOA at 100 and around 1 MOA at 1000 for lot less money. Savages are good guns out of the box, one of the best. However due to being savage you will never recoup the money paid to true action and custom barrel ($500 chambered) and honestly unless you have a lot of experience you will not outshoot the savage for several years. Waste of a good barrel and $ to custom barrel unless you are up to the capabilities of the barrel now. If you are go ahead, if learning stay with factory barrel and learn to do what makes it shoot. By that time you will know how to take a custom barrel and trued action gun, make it shoot right of the bat. Barrels chambered in these overcapacity cartidges are not going to last over 800-1000 rds in most cases. Some are lasting even less than that.