Annealing with lead...holy cow!
I started casting with lead bullets for a commercial caster when I was a teen ager, paid me $10 per thousand. I have seen a few explosions in lead pots...not a good thing!
In the late 60's, we could buy a 55gallon drum of LC once fired brass. We formed every kind of case you could imagine from 30/06 brass, my buddy was a commercial loader. His brother, sister, and I worked like dogs in the reloading business, as he shipped 38 specials all over the USA to police depts. Then we loaded for the local population of red necks.
Loaded ammo formed from LC brass using Sierra Bullets was inexpensive for the locals. We had to anneal every piece of rifle brass of course. Propane torch and large cooking pans with about 1/2" of water and wood dowel to knock over the case when the neck reached the slightest Orange tint.
I have continued the annealing process with propane torch and wood dowel, Templaq 750* is a bonus, you learn to count to 5, 6, 7, or 8 with a particular lot # of brass.
When a guy starts to feel the bullet seating very hard, this is time to anneal as pressures will spike on that case giving erratic results. Alloy composition of brass does vary.
Not many mention, but large over size chambers leade to annealing more frequently. Custom guns with good chambers minimize the need for annealing.
Of course, there are nit pickers, nit pickers that want the precise neck tension, and for those I would encourage you to get a seater with a force indicator from K&M, and your heart will sing for joy!
For Safety's Sake, if you finding yourself screwing around with a lead pot, only use deprimed cases, and wear safety glasses, welding coat and gloves would be a plus. This stuff will put your eyes out in a skinny minute. Messing with molten lead is not for novices. Burns will be common with molten lead and may mess up your tatoos!
Merry Christmas to all!