This topic always brings lots of ideas.
The shotgun might injure and kill some bees and cause them to fly off at less than muzzle velocity of the shot or fall in a trajectory that looks intentional.
Just the same thus seems like an imaginative excuse to fire a shotgun in town in the middle of the day.
What is the real issue is keeping the swarm once it is captured. There are various ways said to help, from hiving them at dusk, to keeping them under cover in the dark for a few days and/or adding some open brood -- or driving them twenty miles away.
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