Quote Originally Posted by Mechanix View Post
Curses, there goes my damage 1d3+10 halfling sling user Thanks for the swift answer.
Dead Eye from dragon conpendium is your friend here.

I'm planning to give my current drow hunter that feat, as well as crosbow sniper from PHB II.

This makes for 2½*dex to damage. That's pretty dadly, although the investment (three feats in addition to standard crossbow archery feats) is pretty high.