Guess what vang? iron arrows. vs scorp arrows. 7-10 pt dmg difference per hit on it. Reason 1 why this not a huge deal: scorps dont quiver, for those marathon sessions, a few iron/horn quivers keep one going nicely.
Reason 1 why this not a great idea: Irons have no +accy, so you may miss a bit more. Bow damage is from the bow, gun/crossbow damage is from the bolt/bullet. Personally id go with horns at that lvl rather than scorps, 5 dmg less per shot but they quiver so i can go the distance ( and yes i have gobbiebags done so piss off), but if a guy wants to use irons because maybe thats the best he can make at his woodwoorking skill, i wont mind at all, i know what the actual difference is. And its negligable at best.
And lemme know when you start XPing shooting nothing but demon arrows lol, then Kaburas. Ill give you a cookie for being an idiot.