I'm new to reloading, but I'll pass a few things on that I have learned, so you don't have to waste time and money. IMO
1. If you plan on loading 12 gauge, you need to buy 20 gauge felts for under/over shot, not 12 gauge-because that would make too much sense
2. Overshot cards are a waste of money. A torn piece of paper will do the same thing, besides I have noticed no difference on the crimps with or without them
3. Each company toots their own horn. You will have to order a reloading manual for each brand of wad you order
4. Pre-slit wads are are not evenly slit, space wise or depth wise.
5. For 3" shells, you don't just need 3" wads, you also need 2 3/4" for certain recipies(See end of # 1)
I have a single stage Mec, and thought I needed the steel conversion kit
I would recommend hand weighing shot and powder-the loader never throws the same charge(especially when using Alliant Steel Powder)
6. I bought 3" Fiocchi pre-primed hulls. They look great, but with only 1 published load using Steel(which has blowbye problems) there a little worthless to me.
7. Everyone has a different opinion on components and loads. Take it all, test at the range, and then form your own opinion. Everyone's equipment, terrain, and expectations are different.
8. It is the most frustating, yet completely satisfying hobbie ive undertaken. My handloads to this point have patterened better then store ammo, have higher velocities, and cost @ 10 a box. Beats 20 a box for the premium stuff!
"Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some game"...Genesis 27:3