I did this, he says go until there is a touch of red and then remove it. He did a test and cooked some way too long. He claims it didn't make a huge negative impact. That's just why I questioned go till a hair into red.
I'm going to build a case annealer, has doing this helped anyone's groups? I was thinking it might help with the odd flier, or make better groups, at least extend my case life.
You want the necks just to start turning red, and remove before they do?