More than 2 of us run amax at mag length in the AR15. Fugly ammo, but works wonders...
I've shot some amazing groups rapid fire like that... once at Nationals at Camp Perry I came up off the 300 yard line rapid fire group and the coach had be calling the shots good, I got up(irons mind you) and said, I dropped 2 shots. I forget which direction by now, I have a photo somewhere of the group. One just barely and the other pretty fair. Meaning out of the 10 ring. He laughed and said you are perfect on call but they are barely out of the X ring... 8x-100... and they laughed when they saw my ammo to start with...
