I was a guest on a buddy's lease and he said I had the green light to shoot whatever presented itself even if it was a monster.
I shot this guy on Saturday at 8:45AM. My deer rifle is a .308 Weatherby Vanguard carbine barrel scoped with a Vortex Viper 4-12-40. I was using 150gr Core-Lokt ammunition. We walked off the shot at 63 yards from a tower stand.
Luckily, even though there were a couple 200 yard shooting lanes visible from the tower stand, I had the scope dialed back to 5 when this guy tried to cross the lane directly behind me (the lane I had walked-in on). I spun around in the chair, the buck became aware of my movement and froze to look directly at me. I leveled the rifle, took it off safe and came tight on the trigger. The whole time between when I first saw the buck and when I shot was probably 15 seconds and I wouldn't be surprised if it was 10. The buck made it about 55 yards into the pines/brush before expiring.
That half hour in the stand shaking like a leaf was really tough. I had to make a conscious effort to breathe. When I climbed down a half hour after shooting, my buddy came over and it took me a few minutes to explain what had happened. We spent about a half hour tracking the blood trail and found him.
Reading this brought back memories of my first deer!! 
