My Large pattern AR has 2 uppers. 18" .308 for He-Man 3Gun and a 22" 6.5CM for anything else. I did shoot an Elk with the 6.5CM, but only because I had neck surgery and was limited. If I did not shoot 3Gun, I am not sure I'd even have a large frame AR still. But the 6.5CM is a lot of fun to shoot.