Yep, the little 6.5 Grendel still has plenty of power to drop a deer at that distance.
Holy crap, I actually agree with you! LOL
The Grendel is great for this kind of application. I had a CZ 527 built in 6.5 Grendel for my kids a couple years ago and it's been a great gun. It comes in right at 7# scoped with a loaded mag. Now there are a couple companies like CZ and Howa offering the 6.5 Grendel in reasonably priced guns using the mini actions, so it's really a great option. Load it up with some of the 100-123gr bullets and it's 100% capable of taking deer out to 200+ yards.
In my experience, the difference in recoil between a 6.5 Grendel and the 6.5x47 Lapua, Creedmoor or any of the 308 based cases is very significant when you compare guns in the same weight class. Plus the little mini actions just work really well with smaller shooters. Heck, I use my little CZ 527 Grendel as my all purpose walk about rifle when I'm in the woods just because it carries so well. It's perfect for the occasional target of opportunity like coyotes, bobcats and cougars out to 400 yards.