Get yourself a reloading book. It will provide the load instructions you need. I think your over thinking it a little. Save your empty shells from here on out. Tall brass for hunting loads and shorts for targets. Set up is pretty easy as the slide bar measures your shot and powder. Personally I've only loaded trap loads as dad always purchased his hunting loads. I'm guessing he did not want to invest into more equipment for only a box or two per year.
Speski OffRoad LTD, Cargo Solutions for Toyota 4x4's http://www.SpeskiOffRoad.com
"80 series, with a fridge"
1976 FJ40, Project with little progress.
2004 Starcraft 10RT