I've had good luck with AA2700 under 25gr bullets in mine. I've also had good luck but less speed with 3031, an old friend of mine used the 25 Hornady and enough 3031 for 3800fps to great effect on wolves, coyotes, foxes, and even a handful of caribou so I just had to try it. I haven't shot anything but paper, but the accuracy is there. I get outstanding accuracy with CFE223 under 20gr Hornady's. I'm using rem7 1/2s now but when I couldn't find any a couple years ago I found the heavy cup CCI 41 designed for ARs to work quite well.
