so, my brother is lending my son his 410 single shot for however long he wants to use it. it sat in his closet since our dad died, back in 1985. anyway, i want to get reloading for it, and my boy wants to shoot slugs as well for some reason. i told him that with just a bead sight, they will be as accurate as a snowball, but that is not discouraging him. a friend has a 41 caliber bullet mold for his 41 magnum, and i was wondering about shooting them thru the shotgun. would they work? i do not know the as cast dimensions yet, as he just mentioned it in passing. it is a lee mold. i do not even know if they make a slug mold for a 410, (i am set up to cast) i am just thinking he may get over his interest just by shooting a few.