I don't remember which mags I have but I can tell you if you have any reservations about the 6.8 VS .223, Grendel or whatever put your mind at ease. it has quickly become my favorite AR, especially as a hunting round..
I agree. 6.8 SPC is a very nice AR round for hunting and self defense. Not exactly a plinker unless you reload but there are plenty of hunting loads. The 120 SST has a good reputation on hogs. If you go to the 6.8 forums & look on the hunting thread, you see a many posts with videos by TEXASLAWMAN. He uses his 6.8 on hogs with a thermal scope and records his kills. Pretty entertaining to watch. I plan on hunting my 6.8 this year.
