I wasn't moving very fast at the time of the shot going off (7 mph) . As far as what type of gun , at first I thought maybe a 22 caliber , because of hardly any smoke. But then as BigAI07 and TDK mention the other facts about the wadding and recoil , now I think it was a shotgun. Even though we were only a 3/4 of a mile away , we never heard the shot . Had I heard them out there shooting prior to flying that way , I wouldn't have . There are several houses/properties where people are out shooting (target ) and I avoid those areas This is not an area where we ever heard people shooting before and probably is not an area where they should be doing it as well.
I know after flying that evening , the top of one of my props was missing (round piece where the black/silver ring is) . I dont think they could have hit that and knocked it off . Gonna check the quad out better now.