I was wondering what the forum members thought of the 6.8 SPC round? I heard about the ongoing testing several years ago from some SF buddies just before I finished my military career. I shoot 556/223 and 5.45X39, prefering the 545X39 in AK74 or Krink platforms. I have considered purchasing an AR in 6.8 SPC a few years ago when AR's and their related ammo's were plentifil. But now looking at the prices and availability I am somewhat hesitant. Any help, insight, or opinons would be helpful.