I used to reload them years ago. You have to pay attention to the wads. They were originally loaded with a cardboard over powder wad and then fiber filler wads between the shot and over powder wad. You also had to pay attention to wad pressures to get the proper burn on your powder. The thickness of the base wad plus the shot - powder load determined the thickness of the filler wads. There were some charts available for this. You might contact MEC and see if they have them in their archives. Modern plastic wad -shot cup combinations have eliminated the need for all this, plus the great seal of the plastic over powder cup makes fussy wad pressures a thing of the past. If your hulls will accept the new plastic wads, you will have a lot less trouble. Most old paper hulls have a thicker wall and the plastic wad will not fit. The crimp is another matter, you need a good sharp crimp starter. If you can find an experienced reloader in your area, don't be afraid to ask for help. Good luck