one of my hunting areas has a 6x6 post worn down to about 3" in the center but i have never seen a buck use it yet but both me and my girl friend connected on two great bucks about 60 yards away from the post.
My old hunting area in Sask had fence posts rubbed right in half. Not sure why, there was lots of other trees and shrubs to rub on. Several fence posts on the same fence line were rubbed, not sure if it was the same deer or not. Shot several bucks in that area over the years.
They love the old almost white fence posts hard to find but if you do they work awsome don;t forget to put a trail camera to take pictures. we have been putting them out on our place for about 12 years 1 post last about 2 years.
I have put trail cams up by posts like these. Lots of buck pictures. It seems that they are a real magnet for them. I am not sure why they pick out individual posts but a deer cannot walk by without checking them.
ran by this one in sask this year, just driving by so I never hunted the area. I did find another in Northern Alberta a few years back and hunted the area for a few days. Unfortunately I missed a 170+ I did see a few other bucks & scrapes & rubs in the area as well.
The bucks have a scent gland on there head, when the deer rubs the post there scent is distributed on the post.When the other bucks smell it they are compeled to put there own scent on the post to replace the other bucks scent.It's all a part of dominance. They just don't strengthen there necks there is a number of resons why they do this.