She doesn't like recoil and wanted to hunt with my Weatherby Vanguard 2 in .223. My neighbor friend has an AR in 6.5 Grendel and with a 120 to 135 grain bullet it seems almost if not equal to .308W with 150 grain bullets in trajectory. Kills hogs very well with a 129 Nosler LRAB. Very low recoil and she isn't likely to shoot over 250 yards. The light recoil is why I recommended it. Besides that we are set up to reload that caliber and I let my cousin have the Creedmoor dies.
For that application the .257 Roberts comes to mind.
