I can imagine a shotgun shell using ceramic pellets (probably with non-spheroid polygonal shapes, for extra damage). The shell base could be a problem, I'm not

I can imagine a shotgun shell using ceramic pellets (probably with non-spheroid polygonal shapes, for extra damage). The shell base could be a problem, I'm not familiar with what you could use similar to brass to withstand the gasses and form a seal at the breech. Primers are such a tiny amount of metal, I don't think they would get picked up - I have more metal in the screws from when I broke my foot.