What does it mean to "anneal" the brass?

I think you would want to change that you use the Tempilac to find the right temperature, 650 is low unless you leave them at that temp for X amount of time.

I do think the Anneal saves money over time, even once fired are 20 cents a case.

You can get clues on when to anneal but you would need to do what JeepHammer does and make test swatches (or just do it) Cost to be spot on is high.

As I used induction and can't get good reads (good clues yes) with the Temple stick (Tampliaig pain on is way off base) I use several methods to cross confirm I am not over doing it.

I make sure there is no glow at all (dark room, and inside the case)

I over cook a case (bad one) to confirm what too high is.

I use the 750 as my max. I then also watch the color change. While that is not a definitive indicator, as a gross one I have found you want to see a blush at most, but not a complete color change. Barely see it if at all (varies from case to case.

If its not over cooked, it will polish off in a few re-load cycles.

Without the anneal, bullets keep seating harder and brass neck cracks when fired.

I also trim any time I do the anneal, works out about every 5 cycles. Gets it all back to as equal as I can make it. I am setup to do it by hand quite quickly (both). I use the Annie anealer and gauges for height of the brass and shoulder trimmer clamped in a vice in a drill. Works as good as the motorized Geraurd
 
Tempilaq is a phase change material, so it absorbs heat and stays at its melt temperature, more or less, until it is all melted. The idea behind the 650° material would be that while the melt is completing, the rest of the brass soaks up more heat.
 
Unclenick said:
Tempilaq is a phase change material, so it absorbs heat and stays at its melt temperature, more or less, until it is all melted. The idea behind the 650° material would be that while the melt is completing, the rest of the brass soaks up more heat.
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Obviously I did not touch on all the fine points. I was simply trying to answer the OP question. I use 650 because I know it's going to be around 750 when it turns black. As long as I only turn it black in the first 1/4" at the shoulder, I'm good to go. I only have to do one test case and I'm usually good to go.

I use to put 450 below the 650 but rarely did it ever turn so I quit.
 
oh no we've entered into the technical side of how to anneal . Get your popcorn ready , it's all going south from here .
 
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