Had mine for nearly 40 years, just another toy but it is fun to take out and launch some big chunks of lead out of occasionally. Linen paper soaked in saltpeter, dried, cut, rolled on a wooden dowel, mated with muselage glue, stuffed with a 405 gr maxi in one end backed by 80 grains of FFG or Pyrodex and twisted closed. Has anyone tried any other loading? I've been wondering of the possible use of Triple 7 or Trail Boss or? Information is kind of sketchy.