The MEC line is the workhorse, the 600jr is the base model to start from. IF you are going to load one recipe, then it is a one time setup with only the occasional tweak.It depends on the speed and skill of the reloader and how many checks you make during loading, as well as how prepared you are at having the hulls, wads, and primers set up. I can load about 4-5 boxes per hour at a steady pace, you can double that with a progressive loader.