Double damage should be the final multiplier on the damage calculation. So no, you can't just double the damage of the bow itself. One caveat though, I submitted a bug report a while ago for double damage shots doing odd numbered damage, which is weird (Edit: confirmed this is still happening).
Dexterity affects ranged damage the same way strength affects melee damage. It's not a simple calculation to determine exactly how much DPS that adds to any given bow.
Yes, attack matters. Again, I can't calculate exactly how.
|