I plan on starting to reload for my shotgun with a lee load all 2 around May ish. I have reloaded metallic pistol and casted. I plan on casting slugs, buckshot, and #4 and #6 shot. A little later when I can legally get a handgun I want a GP100.
I would like to use a powder I can load for 12ga and magnum pistol cartridges. Which one of the three or one that's not on the list would you choose?