You were right I was in the wrong section. I did make up a design that looks good to me. I have a 1in32 twist barrel. The twist rate chart says I can use a 1.25 OAL inch bullet but that's just way to much lead. Here is a design I came up with:
I really would like to make the bottom two bands .544 not .551. When loading a muzzle loader the bullet really needs to go in straight and not have nicks on the base. A lot of bullets are designed with the bottom driving bands at a smaller size then the top band. I am using pure lead so the bottom of the bullet will bump up nicely and fill the bore. I could not figure out how to get this with the software. Maybe its a problem with the CNC I don't know.
Now that I have this design I would very much like to hear what other think about it.
I am well aware that I will need to be very conscious of range and bullet drop when I fire this bullet. It will have a rainbow trajectory but hit like a freight train.