I would look at the ags annealer I had one for a couple years. Had zero problems with it. Annealed thousands of cases. I just sold it about a month ago, I upgraded to an AMP. I have nothing bad to say about it. Also I wouldn't go any lower than a magneto speed for a chronograph. I have one that has many thousand rounds over it and it's just easy and simple to use. I use it when I get ****ed at my labradar. Or if I'm just going out to check the speed of a few rounds. They are great. Feel free and message me if you have any other questions hope this helps.