68 hornady are horrible I tried and tried to get them to shoot.
Either your barrel hates them or you got a bad batch. I went "D" shooting those at 200.
Now the 69 Sierra’s shoot very well in my AR. But those are from being a good inexpensive bullet lol..
They are $26/box at Walmart. And yes, they shoot damn well in all of my AR's. Sometimes its worth forking over a little extra for a good reliably shooting bullet.