Originally Posted by kc0pph
I use a Torch with MAPP Gas. Set all of the brass in a pan with water up to the point i aneal. I usually go just below the neck. I make them glow cherry red then push them over in the water using the torch. I find that propane does not get them hot enough as a lot of heat is transfered to the water. I have found i use a lot less gas if i put lead weights inside the case and leave the spent primers in it. This makes it go much faster as there is no water inside of the case. My cases are not too awful stable if there is no weight and i just set them in the water.
If you are getting the brass to a point that it glows 'cherry red', you are burning the brass. Annealing temps for brass are around 650 degrees F, which does not glow any color red, even in a dark room!
The best way to do this without temp crayons is to watch the color of the brass as it heats up. It should go blue/green into red/brown just below the shoulder, like the rings of a rainbow. The neck itself should be a golden brown color, anything darker than this and the brass has burned. The 'rings' should flow below the shoulder for no more than 1/8"-1/4".
You do not need to drop them into water, it does nothing to the annealing process, but for peace of mind it is OK to do so. So too standing them in water, but you want it to be about 3/4 the way up the body, otherwise it will soak up too much of the heat and give an ineffective anneal.
If using the stand in water method, which I used to, I use a 'lazy susan', which is a turntable, so that I can rotate the cases and heat them evenly.