Instant Reload

 
Prerequisite(s): Character Level 21+, Quick Draw, Rapid Reload, Weapon Focus (crossbow type to be selected).
 
Benefit: The character may fire the selected type of crossbow at his or her full normal attack rate. Reloading the crossbow does not provoke attacks of opportunity.
 
Special: A character can gain this feat multiple times. Its effects do not stack. Each time a character takes the feat, it applies to a different type of crossbow.
 
Source: Epic Level Handbook