Let me start with I'm an NRA instructor and have been teaching CCW since 2005. While your average Self Defense shooting is in close, I've never heard this 20 ft nonsense. Hell, the old Tueller drill teaches anyone within 21ft with a knife is a lethal threat. There is no legal shooting distance in the state of Ohio. If you think that its unreasonable to be failed if you can't hit an IDPA/silhouette target at 50-75 ft in a classroom setting with an instructor to coach you, then do us all a favor, sell your guns and for the love of all that is holy, quit posting on gun threads.