As the hunter that you are- Michael, you will experience this typical encounter time and time again.
A common occurrence when utilizing a ground pursuit and quite common when pursuing turkeys.
Have passed on 13 separate solid shot opportunities on bucks from the ground this season alone and have had over 22 bucks 14 yards and under within my shooting window, Note: Opportunities do not translate into harvest. Had presumably and easily the largest buck of my hunting experiences in KY standing in the middle of my shooting window for 2 minutes at 12 yards last week. Why did he take so long to travel the last 60 yards? Was too dark for an ethical shot.
Perseverance, patience, adequate strategy, proper timing, deer cooperation and good fortune will provide that coveted desired scenario.