Best annealing video I've seen yet. He uses a Benchsource but I've aaplied his technique to doing it free hand with a propane torch and have gotten great results!
I tried this with a handheld torch, $15 one from tractor supply that screws on top of the propane bottle. But I never saw the orange flames he talks about. I dont like the flame I get out of my torch, but it gets the job done. I end up scrapping about 3 cases to get my timing down, but then the rest go quite well.Forgot to mention: use a cordless drill with a socket to hold the brass and put your torch in a vice. Also, I use a metronome (iPhone app) for timing and a dark room works best so you can see when the brass starts to turn that orange red hue at which point you've gone just a touch too long in the flame