Hello all!! Just bought a .300 win mag from my FIL. Its a nice no frills model 700. The barrel is mag-na-ported, and its a real shooter, but I've long been wanting to build some longer range elk medicine. I love my 8mm Rem mag, but it will never be anything more than say an 800 yard elk gun on its best day because of the lack of high BC bullets (and factory barrel accuracy), so I have decided to keep the 8 mag and shoot the 160 ttsx's that it loves at deer, antelope, and hogs, but go for something in .338 for elk. I've pretty well settled on the .338 edge or RUM. Reading some of Mr. Carlock's articles on the cartridge he uses Hart Barrels. What should I be looking for (length, contour, flutes / no flutes, neck, freebore, etc)? Do I send my magnum action to Hart to have them smith it, or have someone else do it?? Any and all advice would be appreciated!