Re: time to anneal and fl size?groups are verticle?
Well, b/c I have time and prefer it, I anneal after every firing on my 6.5x284, 270 AM, 7mm Rem Mag, 300 RUM. Takes me about 4-6 minutes for the whole batch of all of them. On my regular long action and short actions, 270, 30.06, 308, I anneal about every 4-6 firings if not more.
This is just a guess, but the more your brass is worked, with hotter loads, overbore, resizing, etc., the more important it is to anneal to get consistent neck tension.