Re: Wow, blundering around like freshly castrated cattle.
Came here to say much the same thing; effective shotgun ranges are much less than those for rifled weapons.
So what is the issue with both of that if the shotgun is hanging on a mount under another drone? You would even want to have it sawn off to get good wide coverage. As the Sicilans call it "Lupara" or as it is known in Eastern Europe: "Обрез".
Throw in some high grade night vision optics +/- laser distance measurement and a bit of compute to get reasonably good coordinates for a programmable flight close-up so you do not have to use fpv all the way and voila. Here is your drone interception system. Perfectly safe for everyone on the ground.