Almost a twin to my barrel, and it's my favorite upper I think. The round is so versatile, my main load is 55 gr Varmageddons at 3500, and I can stoke it with 85 gr sgk's at 3000. I have yet to try some 95 gr mk's but I will at some point. Honestly it took me some time to figure out the right neck tension and had to get some advice from Ritch to make my home-build feed reliably but it was definitely worth it.
I was thinking the other day if I was limited to 1 AR this would be it.
Great shooting Greg, you really get it done.