Like Land Owner, I have been feeding for more years than I care to remember. I usually run four feeders 24/7/365. Lately, with the price of corn I have reduce that to two. Over the years I have found the sound of the automatic feeder going off is like a dinner bell. I set it for 7AM & 5PM; it runs for ten seconds and distributed about five pounds of corn each time. (If there is plenty of natural feed I will cut the timer back to 3-4 seconds, better to do this than let the corn rot on the ground or act as an attractant to the hogs.)
If there are hogs in the area they will eventually find the feeder and also be attracted to it. I have found that if you shoot on the pigs a couple of times they pretty much disappear, or start feeding at night. By setting the feeder early morning and late afternoon the deer usually have time to eat all the feed before the pigs can get to it
I don’t feed necessarily to attract the game; I feed to provide supplemental nourishment to the game (Quail, deer and turkey). I mix half and half, Purina Anther Max and corn, over a period of time you will see a marked difference in the quality and quantity of the herd.