You’re welcome. You may find this one interesting, too: http://www.appleseedinfo.org/
All throughout American history, the rifleman has been defined as a marksman capable of hitting a man-sized target from 500 yards away — no ifs, ands or buts about it. This 500-yard range is traditionally known as "the rifleman's quarter-mile;" a rifleman can hit just about any target he can see. This skill was particulary evident in the birth of our country, and was the difference in winning the Revolutionary War.