You have backed yourself into a corner with that target wad and hull combo....they were designed for a very narrow range of variables and maximum efficiency....

You could try to roll crimp it. Which could help with pressure and maybe back velocity down a bit for better patterns...although there is that pesky overshot card over small shot?

Surprised that was in the book.....did it spec a lot of wad pressure.

Card and fiber would make it fit but I dont know if I would want to jam a full diameter card wad into the taper case.

Best,
Mark



Ms. Raven