The twist is 1 in ten, so I don't think that is a factor. Up until now, I've had pretty good luck with Privi components. And yes, it's my belief that Remington designed the 7mm-08 around the 140 gr. bullet. I guess I'll work on the other variables. I have other powders I can try. H4895, IMR3031, CFE223, IMR4895, RL17, etc.
Pete