So, I am attempting to build a do all long range hunting rifle and have found the rel issue is too many options. I have a spare stainless 700 long action standard bolt face and thought the logical decision was 280 AI. Then after I got to thinking, my first mistake, I also have a 700 short action with a standard bolt face. I could build a 7 WSM and get a ptg bolt since either action would be trued and I already have a 7 WSM and all of the reloading supplies needed. Another plus would be the short action has the j lock on it and the new bolt would get rid of that. So, spend the money on a new caliber or new bolt? And just to muddy the water a little more, I have a 6 and 6.5 mm blanks laying around too. As far as the rest of the rifle goes, I am wanting it to be mag fed, thinking about sitting it in a manners eh1, and will use it with a tbac suppressor when legal to hunt suppressed and no brake when not.