The closer the better .... but just like deer you occasionally get one that is deaf to your release, but that is not the norm. They are very quick to drop or bolt. They also are excellent at the head fake if you are hunting water holes. Antelope are not deer size, they are smaller, study their color lines and the relationship of the color to their vitals. I learned that Caribou hunting and it really helps pick a spot. Also antelope though small can be tough with a marginal hit. I have hunted them in Wyoming many times. I love the rut and watching all the chasing. Antelope is one of my favorite game meats .... Good luck and be safe