My fastest hunt was about 5 years ago at Fort Knox military base... after the 4:30 am check-in and waiting at the MP post for a while, we were released into our area (Unit 9 for me)... I had used Google Earth for some satellite scouting and knew that the place I wanted to set up was a small woodlot between three tank roads (bearing 91 degrees East for 950 yards from my truck's parking area)...walked in by flashlight carrying my treestand...and pulling a Tink's 69 drag-line
Arrived in the area, selected a nice Red Oak tree snuggled against a big Pine to put my climber on...hung the Tink's drag line in a tree 20 yards away...and climbed 25 feet up the tree...pulled my shotgun up and loaded it...took a drink of water from my canteen and looked at my watch (7:00 am)...legal shooting time was 7:02 (our area guide was very insistent about this since the MP post is on the area)...looked down and a nice 8 point was under my stand moving to the Tink's drag-line...
Crosshair on the buck's shoulder...look at watch...back at the buck...back to the watch...back to the buck, his nose snorting the Tink's dragline...etc...7:02 and 3 seconds, BOOM...