Board Thread:Questions and Answers (Q&A)/@comment-25451195-20160509171930/@comment-3418306-20161127120107

...so, just to be clear in regards to OP's original query, there's an distinction between a weapon and a launcher (missile weapon). Concerning some advanced BG1 mobs which the player will most certainly encounter that are naturally immune to normal weapons (Vampiric Wolf, Wraith Spider, Flesh Golem, etc.), the magical abilities of the launcher (bow, crossbow, sling) are meaningless in this regard. What matters is the weapon making physical contact - the ammunition (arrow, bolt, bullet, etc.) - that needs to be magically enhanced in order to harm the above creatures.