I would take the shot. I am spot on at 50 yards and under. As long as the animal is broadside and I know I will make an accurate shot. I will cow call or etc. to get the animal to stop or slow. Then track it by following the signs if the blood runs out. If you take a bad shot or it's outside your shooting skills I would pass it up. As you will probably loose the animal.
Watch the direction the animal leaves the area, listen to hear the direction of travel and look for the turned up soil and broken foilage if possible. A good shot, they shouldn't go over a 100 yards.
