In Texas it is legal to hunt over bait such as a corn or protien feeders etc. I have 4 corn feeders scatter over 1300 acres. I don't rifle hunt the feeders but rather set cameras up at them for pictures. The doe will develop a routine and show up pretty close to the same time each morning and evening. When a group of pigs start coming into a feeder during the same time the deer wont come in or will after the pigs leave. However, then there is no corn on the ground after the pigs get done thus the deer have no reason to stick around and get their picture taken if the deer come in after the pigs leave. Even if its just one solitary hog coming in shortly after the deer have showed up, the deer still move off and leave the corn to the hog. Course in a large wheat field u can see them both out there together buy not mixed together feeding side by side.
That's the NORM for what goes on where I hunt.