Please keep me posted if it works out. I also have a Diablo 12ga. muzzle loading pistol and it would be great to use it in both as casting your own is a lot cheaper. I wonder if the plastic wad that's made to slip on the bottom would help? I'm also thinking of trying one of the 12ga. slugs that American Gun Craft makes for the Diablo if it would work in the Zeus. I'm not sure how the plastic wad would work with the rifling in the Zeus, it's pretty deep. A smooth bore barrel for the Zeus might be interesting.
Yes Matt, I have shot it about 50 shots. I bought the AGC slugs and use them with the 50gr. 50cal. powder pellets. I bought one for my wife and one for me for car and home defense. (we have CCWs) I figure the intimidation factor alone should stop most bad guys. Recoil with that load isn't bad. I think I will try those AGC slugs in the Zeus when I get a chance. I just ordered the 8" Desperado for a fun gun. It should get more velocity with the longer barrels. It would be nice if I could cast the same bullet for both the BP guns and the Zeus as the bores are very close in size. Bill