Nice looking rifle there, I just finished a 308 AR build (I went the cheaper route, PSA) but haven't gotten to get to the range with it yet. I fired off several five round groups off the back porch to test function, works great so far. I have a long ago established load for my AR10 that shoots fantastic that works very good in my 308 AR's also. I can see I will like shooting my 308 AR better than my Armalite AR10 A2 as it is a lot lighter. Sad thing is my load for the AR10 is with RL 12 which they discontinued probably 15 years ago, I'm working on my last 5 lb jug. I usually use Winchester brass and Sierra bullets, not sure why but that is hte way it usually works out. These guys here give great advice, they have helped me a lot.
Steve...........