I hunt free range hogs with dogs. We use to catch them and release them in my high fence, I sold out and it went out of business. Now we catch them and sell them to people to butcher. I had a small enclosure 140 acres mostly hogs sometimes sheep I started it as a place for special needs kids to come without having to go through a mountain of paper work or hope the buddy system includes them when donated hunts are offered, however I sold hunts to a broad spectrum of hunters to cover operating cost (alot of whom you would hear telling people they would never hunt in a fence the week before or after they hunted with me, but is their lie I let them tell it). Kids could shoot a sow or small boar about anytime, large older boars however were a challenge with or without a fence they are very elusive and will lay still and let you walk right past the brush pile they are laying in.