Get yourself a Draugr Fang and stick with Obsidian arrows for general use, Frost arrows on backup for slowing big enemies, and switch up Obsidian with Needle arrows whenever you have a stack on hand. Please do not get the Huntsman Bow. It is somewhat redundant and a poor use of your precious iron. Unless this bow is reworked in the future, you're better off sticking with a Finewood Bow until you get your Draugr Fang, which becomes available precisely at the same moment as a Huntsman Bow.

I've seen you on these forums a lot lately; hope you're enjoying the game!