I load these on a Ponsens Warren 10 ga 375 loader. I then use a roll crimper to close the hulls over a card wad. I cut 3 & 1/2 inch hulls to 2 & 7/8 inches. You can alos use a MEC 10ga loader. If you paln to do much loading theresults of using a loader such as these may be much better. THe most importaqnt thing to do after laoding- go pattern test on paper at 30, 40 yds +. Use different load recipes and shot sizes. Plastic shot cups usually help increase the density of the pattern. Good luck!