Daryl
I cut the bottom off the shot cup and used it for the gas seal and I took the top of the shot cup and cut the fingers back it just hold the .748 ball. As neather end has a good cup for holding the ball I cut it just short of the mid line of the ball and it seams to hold it centered. I then used 3 1/2" inch felt wads and one 1/4" over shot wad to get the ball to the right hight and was a lot more careful with the pressure that I used to close the crimp. These are put up in Fed. 31/2" shells that had a 15/8 oz load of shot so at under 700 grains they should be ok as I have sean peolpe replace one oz. of shot with a one oz. slug with out harm. I loaded 3 like this and will shoot them and check them over to make sure that they look ok and that they fall out of the gun easely. If they work ok I will load 6 six and see what kind of group I get if they work well I will load the rest of the box and shoot them.
Tom N