When targeting mature deer on trailcams, don't expect to get many pics. If you have a camera that gets a lot of pics of does/young bucks, you can usually find a "less used" trail real close to the more used trail.
In other words, mature bucks often use smaller, less noticable trials, that usually run parallel to the more heavily used "doe trails"..
This may not be true in your neck of the woods, but it hold true here in North MS..