The Challenge Go to the store and pick up a big-buck target if you don't already have one, or use any safe object to shoot at that is roughly the size of a big buck. Place the target 100 yards away. Make sure the target is in an area with a lot of brush and branches covering the target. Leave room for where the heart and lungs would be! Any shooting position is acceptable. 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. Advanced Challenge Rig up a 60-pound pack and trot for 200 yards before you shuck the pack and shoot. Good Gun A Marlin Model 1895 Guide Gun in .45/70, a classic whitetail rifle. Any scope of 4X or less will do.