[Ulzgoroth]

Originally Posted by bocephus

Historical or modern?

Historic
Short bow, Composite Short Bow, or the various crossbows (at least one shot if its already loaded).

Being at least familiar with horse riding and proficient with bows, there is almost no way you could accurately shoot, or frankly even fully draw a long bow (which is the only way to shoot a bow accurately)
You might be able to shoot some of the smaller varieties of "regular" bow, though you would probably only be able to in specific angles from your bow hand side.

If you want to play a game of "what could I maybe do", then Im sure a case could be made for any particular brand of craziness at a high enough difficulty modifier.

I could be wrong, but that seems contrary to the facts of Japanese samurai archery.