I am building a long range bolt action hunting rifle based off a REM 700 action, chambered in 300 RUM. I have a JAE stock and nightforce optics, but currently am using the stock REM SPS barrel. I am looking to upgrade the barrel to 28-30in barrel so I can truly reach out and touch something. I am looking for an outstanding barrel, preferably carbon wrapped to increase strength and reduce weight as it is already a heavy rifle. I am new to piecing rifles together so i am looking for any recommendations as well as gunsmithing options/pricing.