Anyone use the american eagle ar 5.56 ammo?(black box) I have used it a few times and it seems pretty accurate and never jammed on me yet. I read some reviews that say it is xm193 in a different box? but some say it is junk while xm193 lakecity is fine in their ar's. It appears the same as xm193 lake city to me and probably comes from the same factory and line so i'm thinking someone is being critical of the A.E.ammo. What are your thoughts on this ammo? by the way i shoot it from my kids DPMS with 1:9 twist and my POF with 1:8 twist and have the same good results at 100yrds. anyone shot it out to 400~500 yards?