Boy that takes me back to my early loading days in the early 1960s.If I look hard I may still have some of those hulls floating around somewhere.As I remember these hulls used 11ga. fiber wads.A special powder AL120 was recommended but some others worked ok like Unigue.To seal the top wad water-glass purchased at the local drug store was used,but Elmers glue worked in a pinch.These hulls would resize through a loader unlike their cousins all-brass shells.Good luck,hope my memory is correct.