I personally haven't heard anything positive. But then you can't please all the people. The 224 V round itself I like. I built my own upper. Want good accuracy? Need a good barrel. I load and shoot the 90 gr. By the way I used an 18" Criterion barrel on my upper. Put a 6x24x50 Vortex on it. If you're gonna shoot distance you need a good scope. I put a 3.5# trigger on it too. Good luck!