So, I have had my Halo for a while and haven't had time to get it up and running. I am trying to settle on a host for it, and am kind of down to a 16-18 inch AR in 223 or a AR 10 in 6.5 Creedmoor. This is for shooting predators and general night time fun. We don't have hogs here, thankfully, so they aren't an issue. Any thoughts on this? 6.5 will certainly let me shoot out a bit further, especially given the clumsiness of dealing with elevation on a non standard scope, but 223 may be all I need, and is certainly cheaper to shoot.