Most of my dogs cast out and hunt. Range depends on the size of the place we are hunting. We have a lot of huge tracts of heavy timbered ground so a lot of times they will hunt out 2-3 miles and circle back a few times before they decide to leave the area.
You obviously have more spare time on your hands than I do if you can sit around and wait for dogs to make circles like that. Wow, have you ever tried taking them to some place with hogs?