Wiktionary
shotgunner
n. Someone who uses a shotgun
Usage examples of "shotgunner".
By the time I moved a step closer to the shotgunner, I had determined the damage to me was minor at best and that I could close and kill the shotgunner before he could break the weapon open and reload.
Two years ago the LAPD had its (sticky, graft-ridden) hands full with the infamous Nite Owl murder case, which was resolved when one of their members took the law into his own (overweeningly ambitious, opportunistic) hands and shotgunned the shotgunners to the Big Au Revoir.
Every modern e-butler program had filters that could bounce the spam right back to its sender, although as most shotgunners used a onetime address there was little point.