Opinions on RRA predator pursuit w/20" barrel requested. I am thinking about buying one of these as my first AR15. It has a 1:8x barrel so I can shoot 77gr SMK's I had a PTR 91 MSG perimeter rifle in 308, but did not like the recoil, so wanted to go with a 223, but shoot heavier bullets. I would be using this for coyotes, and eventually 3-gun. Any recommendations?