I haven't personally loaded any, but I've seen the results. They shoot pretty good out to a hundred yards or so, but after that they seem to "fall off" in accuracy. These were shot out of a Sako .223 with a 1:12 twist. At 200 yards, they seem to start to tumble and group size gets bigger, much bigger.
I was going to try them, but after what I've seen, I'll stick with real bullets.
RJ