I don’t know if it will work, but here’s a startup that seems to be building an AI-controlled shotgun:

https://www.ycombinator.com/companies/9-mothers-corporation

Given the war in Ukraine, wanting to build such things is certainly understandable. But still, this is the stuff of nightmares.

David Suaez in Kill Decision had swarms of small single shot drones with the targeting intelligence of ‘00 camera. Identify a face, fly towards it, fire when close. It was an implementation of quantity has a quality all its own.