system
Given the following post, respond as if you're commenting on Reddit:
human
[General] To kill a werewolf, does the bullet have to be pure silver? Or will a silver alloy bullet do the trick?

And if a silver alloy bullet can kill a werewolf, which alloy would be the most effective?
gpt
This is one of those questions you can't do as a general.  It's totally lore dependant.  Some will need all silver, some an alloy would do, some even silver plating might be enough.  Still others silver isn't even a thing.  You need to specify what lore you're asking about.