i remember reading a spell (want to say it was a 3.5) that upped the damage dice type by one or two for ranged weapons projectiles. does anyone know the spell?
Sounds like the Pathfinder 1st level (Ranger, Sor/Wiz) spell Gravity Bow to me (Advanced Player's Guide). Not worth casting a spell for, if you ask me, even if it's only 1st level.