100g TTSX @ 3250fps out of a CM would make a fine deer cartridge under 300 yards. If a 6.5 Grendel will kill em with it, the Almighty Creed will killem deader sooner.

Disclaimer: I've never shot a deer with my 6.5CM. However it did smash a coyote Sunday afternoon at 283 yards with a 143g ELD-M. Hard quartering facing, entered mid neck exited mid rib cage about the size of a golf ball.