Also, I also know for a fact that you can 'recruit' new mature bucks onto our property. They cannot be stockpiled on one property!
Habitat management, Supplemental feeding and low pressure with Sanctuary Areas (yes, I will regret that with the current flurry of Sanctuary jokes ) that provide bucks with a secure environment attracts bucks from other properties where they are being 'suppressed' in the Social Structure.
Some properties are just better than others for no obvious reason. It seems like every year that there are numerous mature bucks taken off of them.....with virtually no end. And, oddly enough, these properties are sometimes hunted hard and not managed well. Really makes NO sense! But, the reason is usually social structure of the herd and nearby properties that are 'raising' bucks that are dispersing in and taking the place of bucks that have been killed.