tx3000 never actually listens to reason, but for the benefit of anyone else who may read this:
Dexterity increases chance to hit with bows However there is a penalty to chance to hit if your target is too far Perception increases the range on how far is too far
So with low Dex and high Per you won't be very accurate at any range, but your accuracy wont change much with range. With high Dex and low Per you will be very accurate at point blank, and very inaccurate at range.
Special arrows never miss, though enemies can resist their effects.