I think you and the previous comment are talking about different types of drones- the smaller commercial quadcopters used in the Russia-Ukraine conflict can be shot down with shotguns fairly effectively.

Both sides have been seen with one member of a squad carrying around an issued shotgun in an anti-drone role- the fact that it shoots pellets in a cone is precisely why it's so effective. Skeet shooting is a great example of how relatively small fast moving targets can be hit consistently at range with a shotgun and they are usually using much smaller/lighter pellets with poorer velocity/range, I would assume the loads used in an anti-drone role are bigger.