I would really enjoy seeing some updated discussion on the 6.8 SPC - it has certainly been "quiet". I frequent the 6.8SPC and the 6.5G forums and you have to sort through a lot to get useful info. I have a 14.5 6.8 with a weld/pinned AAC suppressor mount that I like and a 6.5 Grendel 20 inch set up for longer range. Because I have the 6.8 and 6.5 (and 5.56), I never went down the 300BO path.