Hello Fellow shooters, I have finally decided to join this forum because it seems to be the only place where long range hunters actually help each other with strong advice. I am no newb to rifles and not so bad with a bow either but this long range rifle build has my head spinning. Before I let my self purchase a long range rifle I have decided to build two of my own so that I know exactly what goes into it. (kinda like building a hot rod rather than just buying one) Please bare with me as I will have lots of questions and am anal about accuracy. Gear: 1.) Basic Remington 700 BDL chambered in 7mm rem mag, Bell and Carlson Thumbhole stock, Timney trigger at 1.8 lbs, Full float, block, glass, topped with Leupold Custom Long range scope w/already installed Mill Dot reticle and long range turrets, shooting factory Fed Premium ammo 140 gr accubonds, factory barrel, factory action 2.) Basic Remington 700 BDL chambered in .300 Ultra Mag, BlackHawk Thumbhole full float stock, bedded/blocked, Same Leuopold Long range scope as mentioned above, Timney Trigger at 1.8lbs, shooting factory Fed Premium 200gr Partitions, factory barrel, factory action From reading, reading.......and reading some more I have come to the conclusion that there are three weak points in these rifles, Barrels, Actions, Loads I have had decent success with these set ups using the Ballistics program Exbal. Questions: Barrels: I have looked into Hart barrels, and aside from their fancy fluting which is a plus, I have decided to go with their match grade barrels, fluted bolt and muzzle brake. So the questions go: What length? Twist? Tapper? Anything else I should know? Action: I know I need to have these barrels trued to the actions, what exactly IS truing, what do I need to know about it? And will these factory actions suffice? Loads: I know barrels and Loads go hand in hand, so my first question is can a newb honestly build serious long range tack drivers doing load development them selves, or is this best left for a pro? If I attempt this myself, what kind of bullet must I use? (I see every one is into Bergers these days) Grains? Dimensions, shapes? Speeds? I hunt Deer and Pronghorn with the 7mm and Elk or bigger game with the 300 Ultra Mag. I have always believed that its not neccesarily about the bullet weight, speed, flattest shooting ect, its accuracy that kills. I have no problem putting in the bench time to get to know the rifles and build a better shot, I just want to build these guns to the point that a miss would only be the result of the shooter. Thanks for reading, I look forward to learning the proper information needed to finish these rifles.