I’m sure others have experienced gun ranges that say no green tips, 855s or ss109. I shoot a gemtech halo and light Bullets don’t suppress. My a2 upper made by capco groups lake city 855 perfect. I have tried federal red box 223 62 grain with less than a decent group and Swedish 5.56 otm from sgammo which aren’t available. Any suggestions for a clean affordable stockable 62 grain that groups well? I have 3 20inchs colt fn. and capco