Stan,
When annealing by hand I put a coffee can with water directly under the torch, which is standing on the edge of a bench/table, so all I have to do is open my fingers and the case falls into the water. Off and on I dip my fingers into the water if I feel too much heat. It is not really necessary to heat until the case turns red, in fact with a necked case, over heating is what causes the shoulders to buckle. Some people fireform using a bullet instead of filler, but with the filler, you can't create excess pressure and you save bullets. If you have a single shot 410 with no choke, you could take Parabola's advice but load cast bullets. My cousin's final fireforming for his double rifle was with cast bullets while working up acceptable loads. I don't have anything against using a machine to help in the process. You may find an easy to build one on You Tube.
Mike
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