I have to respectfully disagree. I'm a believer in annealing and do it after every firing. But the benefits won't show up at that range. If he had a chronograph there...that's where we'd see the lack of annealing and inconsistent neck tension. I bet the ES/SD would be subpar at best and the round wouldn’t translate well beyond 600 yards.If you would have been annealing the group would be half!