I know some of you may balk at me, so please forgive my ignorance. I usually don't venture into the black powder section.
However, I read the 22Hornet was originally developed as a black powder cartridge in the 1920s from a couple sources... I don't have a mold for .22 caliber yet, but I'm super curious to try this.
Does the above data sound right? Any conciderations I should use? Anybody do this before?