While the 6.5 Creedmoor is a fine hunting cartridge it has some limitations, at least in my opinion, on large game whereby the 308 WCF is a more proven commodity with several hunts and kills on several continents.
If you're saying the 308 is a "more proven commodity" in your own hands, I can buy that. However, the 308 is not necessarily a more proven commodity than the 6.5CM in its various incarnations going back to the 1800's (ie, 6.5x54, 6.5x55 etc.) - unless you take into account African poaching.
Charles Sheldon's experience in AK with the 6.5x54 alone should settle any debate about the efficacy of any moderate 6.5mm cartridge.
And I say all that as a died-in-the-wool 308 man who has never taken a single head of game with any 6.5mm cartridge.
Cartridges are more alike than different, and most of the differences are between the shooters ears...
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
