There was one summer we were having a raccoon problem really bad. So one night, my grandfather and I waited till about midnight, turned on the lights in the barn and opened up with a pair of 12 gauges with 00 buckshot. I think we ended up with 9 dead in the barn and 4-5 dead outside the barn. Haven't had a coon problem since. Did end up re-siding the barn and patching the concrete bricks though