This is a little nutty but something different

I've toyed with something kind of similar with revolvers, multi-projectile loads. Actually with a large degree of success! This is on a totally different level. Someone ALWAYS asks about one of "projectiles" sticking and getting left stock in the bore. I admit not an out of line question.

https://gunsmagazine.com/our-experts/shooters-rx/the-1-shot-double-tap/