"Hey could ya..... just because we love ya..... on the first shot maybe rig a light line and pull the trigger remotely?"
Yup! I've got a tire filled with concrete with a 4x4 post stickin out of the middle that I'm going to use as a launch stand, I'll strap the shotgun to that and then use a string to remotely set it off. Thanks for checking though
That testing method is actually per TM 31-210 "Improvised Munitions Handbook" published by the Department of the Army. They actually suggest using a longer dowel also, I hadn't thought about the gap causing trouble... I'll have to think about that one, see if it's a problem or not. The balls I got were only 10c apiece, so I got a couple.