I double lunged a moose this year and after 5 minutes, put the sneak on him again and put another arrow into him at 10 yards. That was a double lung and heart shot, and he died seconds later.

He quickly ran 40 yards after the shot, then laid down. He got up about 10 seconds later, walked in a backwards 360 and laid down again in the same spot. I saw the arrow hit, and watched as he ran off with blood pumping out of both sides of him, so I knew it was a fatal hit. I didn't want to push him, so I didn't launch a long shot and didn't stalk him right away to get another arrow in him. Frankly, I didn't expect him to last that long!
ArcticBowMan's Hunting Photo's