RE: Short magnums
If you are hunting North American big game, the .270 WSM is all you will ever need. It is perfect for all of our hooved game animals (African plains game, too).
Some people might say that it isn' t enough for the big bears...and I would agree. However, neither is a .300 WSM, so save your shoulder and hunt deer, pronghorn, caribou, sheep, goats, elk and/or moose with the .270 WSM.