You have to take this test during the last five minutes of shooting light, because that's when the big ones show up. If the sun sets at, say, 6 p.m., you have five minutes from 5:55 to get off one shot, and one shot only. But this is not all. You have to run as fast as you can from 100 yards away to wherever you will shoot from. Leave your rifle at the firing point. The wind sprint is to get your heart rate up where it would be in real life.