Found a brass gang mold that pours 13 x .63 caliber musket balls. Somewhat similar I guess. Says it’s origin is the Netherlands. Cool piece you have.
https://emuseum.history.org/objects/47046/musket-ball-gang-mold?ctx=30140c8b25df342ea5728925937c06f3150cb4a2&idx=9
I don’t know anything about reloading or what constitutes a good deal for components but check Gunbroker. Several there with Buy it Now options.
https://www.gunbroker.com/All/search?Keywords=Pistol%20primers
Sorry for asking such a newbie question and am not even sure I am posting it in the correct location. I am getting back into shooting after 10 years and have read the threads that say .9mm, .38 spl, .357mag, 22 mag (don't think it can be?) rounds are cheaper to buy than reload. I have 2...