I certainly like this method as opposed to others I've read about as it seems like it would be quicker and easier than water trays, etc. I've never annealed cases but have always been curious about its benefits. I have hundreds of winchester .223 cases that have been loaded 5-6 times, trimmed once and have been neck sized the past several loadings. I figure they may benefit from the treatment but have no idea what conditions would indicate the need for annealing.
How does one know if the brass is becoming hard and in need of annealing? Does .223 brass tend to need this treatment?
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