I don't know if you really need all that, not that it won't work, but just make sure your die is set up correctly (maybe partial resizing as an option?) and definitely trim case mouths square and chamfer. Case prep is very important, I also might recommend the new Hornady Run-out gauge/correcter. When accuracy is measured in thousandths of an inch, I would definitely recommend these tools tho.
Red mist. It's an addiction!