The Kentucky rifle was the most popular gun used by mountain men in the early part of the 19th century. Its name came from its association with two famous men from Kentucky, Daniel Boone and Davy Crockett. Its long barrel produced a greater range and accuracy than other rifles. The Kentucky had an overall length of around six feet and could kill an animal 300 yards away. The use of the Kentucky went into decline about 1830 and were replaced by the shorter and more powerful rifles used to kill buffalo. This included the Hawken rifle which was much easier to use on horseback.