I've got a Burris XTR II 1.5-8x (CQ mil reticle) on my AR-6.5G SBR upper, and a Tango6 3-18x (DEV-L MOA) on my Ruger American in MDT chassis. No objections to either. The 6.5 Grendel is a round that can go pretty damned far if you give it enough velocity up front, so giving it a little extra...