I built an AR in 6.8 SPC last year , 20 inch AR Performance barrel, really like it's performance on an example of 2 whitetails . 110gr Accubonds . I keep trying to think of another AR based cartridge that has better specs with factory loaded ammo (since not reloading yet) and I can not. All of them are real close though. If I reloaded I would be thinking maybe a hot 6mm ARC load or bump up to a 300HAMR....Joe
