I played with the Grendel in several bolt rifles and one AR. I came to the conclusion that it is better to use the designed for AR cartridges in AR's and use cartridges designed for bolt guns in bolt guns. In the same short action I would have to use for a 6MM ARC I could have it chambered for other more capable 6MM's.
Umm, the Grendel (and the current 6 ARC, and all it's 6mm Grendel wildcat predecessors)
are cartridges designed for ARs. That's why they're the length they are, instead of something longer (for hunting/varmint guns) or shorter (for benchrest). What makes you think they were designed for bolt actions?
