I bow hunted for antelope for the first time this year, and tried several shots in the 60 to 80 yard range. I'm shooting in the 260 fps speed range. I missed a couple of them that, had I remembered to take the lazer rangefinder along on the stalk, would have been going home in the back of the truck. Shot at one that was looking right at me, about 75 yards - he jumped an entire body length before the arrow got there. Shot was perfect . . . . it almost looked like he spooked from the sound/sight of the arrow coming towards him rather than the sound of the bowstring.

Anyway, I'm thinking 50 yards as well here. Even though a paper plate at 80 yards is a high percentage shot, there is just too much that go wrong under field conditions.