I got hit with the long range bug. I have stretched my bone stock 17 fireball and Armalite 308 to its limits I believe. I am thinking a custom 243/ 6X47 lapua or variation looking to run the 115's for Michigan whitetail and the rest for steel. I have a Rem 700 SPS 243. Do I just start replacing parts and pay someone to accurize it or do i just get a brand new gun.? I am hoping to either take a class or just learn on my own to stretch to 1000 yards plus. Thanks for your help.