I'm wanting to build a 800yd rifle that will be perfect for everything in CO. (antelope,deer,elk) I am kind of fond of savages, I have 4 with accutriggers so i want to keep it all the same. I do reload for all of them. I have a Tikka t3 lite in stainless 300wsm that shoots great but want to sell it for a new Savage WW with accustock. My dilemma is which caliber 7rm,7wsm,300wm,300wsm??? I will re-barrel the WW if it don't shoot after break-in so caliber is not that important. I read alot on here about the .284 being too small for elk at long distances but I like the B.C.'s. HELP PLEASE!!!