Use paper towel as wadding

you make a number of spud pellets, you freeze them after

I like how when someone offered an idea that turns a mildly dangerous toy into a decidedly lethal weapon, rather than dissuade others of the terrible notion we went into problem solving mode to increase reliability, quality, and to minimize the potential hassles inherent with the lethal solution.

Schedule 80 pvc is pricey. I found that a 1" barrel accepted s that had been wrapped in a bit of duct tape to form a snug seal.....