In a non-military situation, if you find yourself outnumbered and cornered, then maybe some rapid trick shooting might allow you to escape.

In military combat volume of projectiles is useful as there's a chance that even a weak projectile will land a lucky shot. However, that was typically accomplished by massing archers. Also, you can, to a certain extent, trade effective range for penetration (i.e. an arrow that won't penetrate armor at 100 yards, might do it at 15 yards) -- although I think the aerodynamics of arrows used with bows are pretty good(?), certainly when compared to a military crossbow bolt(?).