Wish I was closer I'd love to "help" you with those piggies. We have a population of them developing here in Central New York. Not sure how they got started, but, there's alot of them getting harvested. With no regulations this gives me a year round season to hunt them.
Man, if you want pigs run off for a long while, have somebody come run em with dogs. Believe me, the dogs will do a better job of scaring pigs off than a rifle. Don't ask me why, but if you get after them with dogs a few times, they just don't wanna frequent the area anymore. Regardless, killing pigs is one of my favorite things in the world to do. I just can't get enough of it.
Here's a few pics of me with pigs. The first one was shot with a 12 gauge, the other 2 pictures are of hogs that were killed with knives after the dogs caught.