I built it after trying the dueling event at rondevue you stand back to back walk ten paces apart from each other turn and both fire down range at skeet on a pole , if your skeet is hit your dead and out , if neither skeet is hit that's when your heart starts realy racing . fun but alas it took me two years to complete and when done they had stopped the dueling event . just heard two days ago that another close by group has the dueling event.