Too many city boys getting involved here. Coons are nasty mothers. Had them chew up the aluminum siding in my barn and move in. Difficult to shoot them in the garage so a cross bow was used. Coons will kill a cat, can chew up a fair size dog. Leaving lights on is just an invitation for them, they also will eat moths and insects attracted to the lights. Coons natural diets are frogs, clams, and small minnows or if you have an outside pond with Koi or Goldfish they will clean up on them too. Coons have a reputation for spreading rabies to family pets and other wild life.
Using a pellet gun on a Coon is like using a .22 to take out a tank. Coons are not pets, they are territorial, and have a nasty disposition when challenged. Once they have found a easy food source, (grain, cat food, dog food, garbage bins, compost piles) they will keep coming back regardless of how much and how many times you attempt to harrass them in a non confrontational manner. A .22 calibre is effective a .243 or .222 is much better. Ok time to feed the cattle. Cheers GB