Good info, this annealing thing looks like something to add to toolbox, but really is only a once a year, maybe once every 2 year process that I would do... that being the case a shared annealing tool may be what's needed.
The last time I had some flyers was at the winter LRTR... last stage was a 8" plate at 800yards or so... got on target with a little wind, and shots were all over the place, up until that point, I was hitting just fine...
Anyway, just something else to add to the consistency of my loads. Great info, thanks!