I had a 6.5 Creed in a Savage Mod. 16 Weather Warrior. The rifle shot fine but was balky feeding which I attribute to the sharp shoulder angle. For that reason and the fact that the 7/08 would do what I need and is a proven round I would choose the 7/08.
Most of the cartridges based on the .308W are pretty good on accuracy. If you want a 6.5 maybe try the .260 Remington.
I doubt it. I’ve had several rifles chambered in 6.5 CM, and they’ve all fed smoothly and reliably, despite the shoulder.
