Mounted Archery( Player's Handbook v.3.5, p. 98)
[Fighter Bonus Feat, General]
You are skilled at using ranged weapons while mounted.
Improved Mounted Archery (CW) ,
The penalty you take when using a ranged weapon while mounted is halved: -2 instead of -4 if your mount is taking a double move, and -4 instead of -8 if your mount is running (see Mounted Combat, page 157).
A fighter may select Mounted Archery as one of his fighter bonus feats (see page 38).