Played ranger, too. First upgrade was a sling of accuracy; then, for a short time, I was using a x5 randart xbow; untill I found a longbow randart (only x4, but also had +5 con and fire immunity) which eventually was used to kill M.
Actually...can get the dump from live:
http://angband.oook.cz/ladder-show.php?id=24527