Hello to everyone, I'll first start out by saying this board contains a wealth of info and some great hunting stories, i've enjoyed the general attitude and respect shared by all the enthusiasts that post here. Now to my noob ?'s I would like to build a custom rifle capable of consistand 600 yard performance. I own a Rem 700 in .260, bushnell 4200 4-16, handloaded w/ 120 nosler balistics and a savage BVSS, bushnell 4200 6-24 handloaded w/ 55 noslers. both are very capable to 400 yards (savage shoots .37" outside diameter 3shot groups @ 100) and both have qualities that i like. I would like to combine the best of both to extend my range and downrange terminal performance. Here's the plan Action Savage, either used or one of the target actions they offer 200-400$ Caliber 260 remy (since i have over 300 brass for it already) Quality tactical scope Barrel 30" Lilja 1" straight contour bull Stock ???? My ?'s are What length barrel will optimize the .264 bullets in 140's and 160's and what twist for each? Would it be worth the $ to chamber in 6.5x284 to gain additional velocity since i have the brass for the 260 on hand already Stock recomendation for under 300 bones that will fit the 1" barrel I picked the savage action because I can basically build it myself and save some $ in the process. I realize that this rifle if loaded properly should be capable of consistant accuracy well past 600 but shots seldom present themselves much past this in the mountains of WV. Longest kill on a chuck this summer for me was 480yards w/ the savage, this was the first year hunting chucks semi seriously. Any help is greatly appreciated.