Dunno but they are inviting a response with Wrist-rockets and ball bearings.
re: “Dunno but they are inviting a response with Wrist-rockets and ball bearings.”
Ball bearings might cost a bit.
I suggest .58 caliber lead balls, as were used in some rifles of that fateful period of time. It would have an ironic bit of historic ‘lead-flying’, would it not?