About 80 yds with open sights. When I first saw her at 40 yds, I could see she was crippled with a real bad limp. She dissapeared in the tall swamp grass before I could get a shot. When she reappeared she was about 70 yds, walking directly away and all I could see was her head. I settled my sights between her ears and touched her off. I didn't know if I hit her until I went to look for her. I found her spread eagle right where she was when I shot, with a bullet hole right between her ears. She had been hit with a bullet earlier during the regular firearms season and had a raging infection. The bones on one of her front legs were completely exposed in her shoulder area. The entire area was green and she had lost about half the hair on her body. I'm glad I took the shot as she had to be suffering horribly.