I mean is he shooting at your house, 100 ft away is relatively safe for birdshot........
Another ballistic expert heard from. I hope you don't bird hunt.
As others have said get proof and let the law handle it. If you handle it on your own you are the one likely to get arrested and with a record you would not be able to posses your own firearm and there goes any thoughts of you hunting with one. Even though your'e a bow hunter you may change your mind someday.