Hope y'all are having a great sunday. I am in the process of accumulating all the pieces for my first long range build. I am very interested in the 338 RUM mainly because I can use a remington 700 action that I already own, and love. My one big question is availabilty of brass and factory ammo. In your opinions, should I go with something more available like a 300 RUM or standard 338 win mag. Im wanting a hunting rifle that can kill anything in North America, that can also punch holes out to a mile, providing I can keep up with the weapon. lol. I look forward to your responses. Thanks, Lee.