If you really want to catch a ton of hogs, and you are trapping on land you own (or that you lease or whatever) you can make a more permanent trap. Place a feeder out for a few weeks to feed the pigs. Fence it in so that there is only one area where the hogs can enter. After they get used to using that one spot to get into the feeder you can install a one way door there. The pigs should just go right in like normal, not even knowing that they are trapped until it is too late. You should even be able to hang out a ways off from the feeder to observe the action and you will be able to dispatch the little porkers shortly there after.