If you are buying off the shelf, any 7mm, or 300 WSM. If you are building a custom, I'm prejudice, don't overlook the 338-06. I rebarreled my Win 70 Fwt from 280 Rem to 338-06 with 24" Fwt contour PacNor. 2800fps with 200gr Hornady SST and easy to carry, moderate recoil. Can closely duplicate...