I'm looking to build a custom hunting rifle and I'm stuck on caliber choice. I live in Virginia and primarily hunt whitetails, every few years I get to hunt elk, and hope to hunt moose/ caribou in the next 5 years, and I'm planning a 2018 South Africa plains game hunt. I weigh about 155lbs. I've got a model 700 in 270 win that shoots fine, and I have 0 recoil issues with. I have a 300 Win Mag TC encore that kicks pretty stout and I don't hit well at all with, I just bought a 300 WSM for experiemtnal purposes and it flat out kicks like hell. I would love to have one rifle that I can pick up with 100% confidence and kill whatever I point it at out of the above list. I know there are hundreds of posts out there like this, but I'm looking forward to feedback on my particular interests.