The Giraud power trimmer is like that, but even better. You just swap a cutting head and a cartridge holder and you're done. One-time setup for each, and you can re-use the cutting heads across calibers (ie, .308 cutting head works for both 300AAC and 7.62x51). I still keep my old 308 tri-way around just because it's sometimes more convenient, but I'll sell it eventually.
That looks like something I need.