That's when everybody lined up together in rows to shoot, right?
Proper archery, pshaw

That's like demanding sharpshooters for your musketeers.
All you need to do is get the arrow to fly far enough, and you're almost guaranteed to score a hit on somebody!
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I agree that making ammo would be much harder...
You wouldn't have to use it in every battle though.
Save up production, and pass out the arrows for a special operation. Attract a big opposing force, and surprise (read slaughter) them with a rapid-fire barrage of arrows
