I really like my Grendel too. Would like one of these no doubt as well. I think the 6.5 has a bit of an edge for hunting medium game inside 300 with fatter, heavier bullets, but only maybe a bit.
I ain't kicking about this one, or any one actually. Contrary to apparent popular belief, old stuff isn't diminished by new stuff. This is, after all, all fun and games.