Speed using a single-stage is more a function of how organized the rest of your process is; your fastest speeds are going to be when you do one stage to an entire batch of cases at one time. I'd expect you could do 100 rounds in 1 1/2 hours once you got your technique down, and weren't have to constantly fiddle with anything. Even though I preferred a Dillon 550 for handgun ammo, I ended up getting 3 single-stage presses for doing rifle, just so I could set up one for decapping/resizing, one for seating, and one for crimping. The reloading manual/book that comes with the Lee kits does a good job of describing how and why to do each stage.
