I know this is a tall order, but give me your best thoughts for a magical cartridge the can do it all- I want to build a hunting rifle on a Manners mcs-cs1 stock that will be packable. I live in Alaska so Deer, sheep, bear, moose etc. out to 600 yds accurately I have teenage kids/wife that would use it too (adjustable LOP stock very handy) Recoil manageable- will most likely add a break Barrel - CarbonSix with Remage nut, 18-20" - break dependent, possible can in future Action- Rem 700, prefer Short (limited by mag space to 2.8 COL) unless Long is clearly better. Bolt- standard or mag? *edited- I reload so option for different bullets in same cartridge *edited-I own many other rifles including a full custom 7 SAUM, 300 wsm, 35 whelen, ultra light 308 etc I have a friend that has built several accurate rifles with the Remage nut so I plan to learn from him thus I am limited to factory parts- no extended box in a short, no lathe work, etc. Now if there isn't a perfect cartridge, the Remage nut would allow a easy barrel swap..... so maybe suggest your best single cartridge for one barrel, then if you think two barrels would be better, which two that share the same bolt face?