the name says it all...my freezer is my "Proof"...once you try a 6.5 or 6 and a half as a swedish friend of mine calls it...nothing else is needed...accurate enough to decapitate grouse too, which really hones your marksmanship I might add...Factory or handloaded ammunition either are superbly accurate, and deadly, without alot of muzzle blast and recoil...BUT if you are restricting yoursellf to an 06 or 7mag...I would say 06, no contest