Howdy, the first thing that I wouuld do would be to find out what legal ramification I have in the event of another attack. That means talking to local Law Enforcement Officers. I dont know what kind of area you live in ie how close is your neighbors how crowded your streets are what kind of back stop you may have for those wild flying buckshot pellets. Keep in mind once you pull the trigger you and you alone are held completely responsible for where those pellets go and what they may hit. You might be better off using a simple .22 rim fire and a very well placed shot. Just as effective. I personally would opt for a .45 acp unless i knew I could shoot my 12ga completely safe and no one could get hurt from it. BUT LIKE I SAID EARLIER CONSULT LOCAL LAWENFORCEMENT ATHORITIES PRIOIR TO TAKING THE LAW INTO YOUR OWN HANDS.