Shot 6 deer my first year, 1 buck and 5 does.
Longest recovery was about 50-60 yards.
Last year shot 5, 8pt., and 4 does.
Longest recovery was about 50 yards on the 8 pointer.
This year 2 does so far, and a coyote. 30-40 yard recoveries.
I would say the average recovery distance is around 40-60 yards for a well hit deer, regardless of size, about 8-10 seconds to live after a double lung shot.
I shoot tekan-II expandables with about 70 ft.lbs. of KE.
I take only shots I know I can make, 40 yards max on live animals, practice out to 60 yards on 3d and spots. A buddy of mine I shoot with shoots right with me on 3d and spots and he has shot 4 deer this year, 3 does, 1 lung and guts on all of them and a nice 9 ptr.
Shot the 9 at 30 yards, hit high in the shoulder he lost blood and couldn't recover the buck.

Bad things can and will happen, I just try to prevent them in every manner possible, and my rangefinder(leupold RX-II) is worth its weight in gold!