"I used it in an elevated blind in Ohio, in a food plot at a friends farm. I had deer right in front of the blind, and window open about 3/4 of an inch, with the Ozonics HR500 on "standard". At dusk, a big 13 point came into the food plot from the woods. At 45 yards, I took that big 13 point, using the HR500. He measured 167 1/4, I was told he would have been over 170 if his broken tip was in tact."