Quote Originally Posted by EmperorSarda View Post
Longbows have a range of 100 feet.
But that's only the first "range increment." An archer can add addiional range increments, up to 10, with a cumulative -2 penalty to attack. So, for example, between 101 and 200 feet, -2; between 201 and 300, -4; etc.

The Far Shot feat increases the range, as does the distance special property for bows.