I have a Ski Nautique ski boat,a few years ago I went to pull it out from under a portable carport I was keeping it under and I noticed a small hole in the canvese top of the carport.There also was a small hole in the boat cover.When I took the cover off the boat there was a small hole in one of the seats.There was a 22cal bullet on the floor of the boat.That bullet went through all of that and bounced off the seat foam onto the floor,it must not of had enough energy to go into the seat foam.