[marinesg1012]

C- I shot the remington as range practice at 25 and was doing double taps with it, I did it using my old upper and your and they both worked fine. The hornandy I have never had a problem, sometime the 110Vmax and sometimes the 110 tap but they are the same. The only rounds I have had issues with your uppers in is the 90 grainers (not combat loaded) like I told you about, and it will feed them now just short strokes, and every once in a while with the sandB ammo.