Birdshot has a very low ballistic coefficient, and slows down rapidly due to air resistance. When it falls back to earth, it's basically like throwing a handful of BBs at someone from across a room. Except even smaller and lighter than BB gun BBs. They don't even penetrate tree leaves. This is why you use a 20 ga. shotgun to hunt squirrels sitting in trees. It's very safe (for everyone except the squirrel), whereas even a .22 bullet will retain a lot of energy at long distances. This guy picked the exact right tool for the job.
Birdshot has a very low ballistic coefficient, and slows down rapidly due to air resistance. When it falls back to earth, it's basically like throwing a handful of BBs at someone from across a room. Except even smaller and lighter than BB gun BBs. They don't even penetrate tree leaves. This is why you use a 20 ga. shotgun to hunt squirrels sitting in trees. It's very safe (for everyone except the squirrel), whereas even a .22 bullet will retain a lot of energy at long distances. This guy picked the exact right tool for the job.
So what's the ballistic coefficient of the drone, and how much kinetic energy will it have when it drops to the ground?