Magic is hit far harder by the Invisi-Wall. has been that way since Morrowind is probably less in Skyrim, nearby objects trigger fireballs, as an archer this is nice as you can use cover to block spells while hitting them.
Because of the aim correction cutoff I have not been able to replicate my 300 feet over hilltop kill in Oblivion, was wearing the thief guild cowl and a ring with sigil stone detect lfe and shot an orge on the other side of an low hill,