If you use the 6.5CM as the basis for an "upgrade" I'd say you might want to quantify your parameters for the "step-up". You could use some mathematical benchmark such as ft./lbs of energy at 300 - 400 yards. What would be acceptable over the CM - 20% more? Would you consider a SD comparison too? Then factor in if you are capable of mastering the "upgrade"? What good is more "hitting power" if you anticipate the recoil? But as we have seen here many times, standard "deer cartridges" take larger N.A. big game quite effectively. Good luck.
