I typically ambush, sometimes I spot and stalk to a good ambush spot. My first year hunting antlerless elk, less than a year from getting out of the army (11B), my dad and I spotted a herd moving cross slope away from us, about 700 yards out, just as we pulled in. I hopped out of the truck and took off at a dead run through the bottom of the valley, got in front of them, and hunkered down behind a tree. Dropped a cow at about 100 yards. As I was walking up to her, I had another one step out from behind a tree about 25 yards away. Managed to drop her before she fully realized I was there. That was when we realized that we had forgotten a bone saw.... 2 elk down, 1/2 mile from the truck, downhill. We did have a come-along, so we spent the better part of the day dragging them from tree to tree, 50 feet at a time.
Much younger (read "dumb as a doorpost") and not hunting, I got within 10' of a cow and calf moose. Had to play ring-around the pine tree with mama for a few minutes before she figured the calf had gotten far enough away. I was damn lucky and never did it again.