Re: Factory Ammo for .223/5.56
Hornady ammo, but skip the superformance stuff--total crap in an AR15. Shot like a shotgun out of my 18" SPR rifle length AR, which is typical of other's experience with this load/rifle as well, and they state it should not be used in a carbine length gas system--blown primers is the typical result.
So, skip the superformance but the rest of Hornady's line-up should be good to go.