My deer rifle is in 7-08, but I wouldn't want to shoot a lot through one as 7-08 is EXPENSIVE! On the other hand, if you're paying $1500 for a deer rifle, and are planning on using this as a deer rifle, you wouldn't be going through much ammo, as compared to a regular AR15.
Still, I wonder what makes this different from any other 308 AR, other than being available in 7-08?