Got the double buckshot and the slugging went well. Problem was in the measuring. I used calipers and seem to get measurements between .304 and .312. I'm assuming the .312 may be the correct measurement? I used Parashooter's diagrams.
Maybe you could all send me donations enough to buy "store bought" ammo!! And I'd agree in return to never bring this subject up again!! LOL!
"We make men without chests and expect from them virtue and enterprise. We laugh at honor and are shocked to find traitors in our midst."
--C.S. Lewis