I've got an old 10-50x56 Tasco Custom Shop on my HW77 for FT. Focuses down to 8 yards.
Turn it up to 40x to range and it's pretty good at determining between 50 and 55 ( 50x is too dark for me and the clarity struggling ). Turn it back down to 20x to take the shot. Plenty bright enough at 20x in any wood.
Like Bri says I do worry about it's weight on the extended high mounts I use ( 2.2 inches above bore ).
The ret has taken the recoil no probs and it's held it's zero.