Your marksdwarves are using adamantine bolts, which are pretty useless against armor due to being incredibly light. Steel is best for projectiles, though bronze and iron are cheaper and can still pierce through armor.
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Movie Name: Goblin squad versus adamantine legendaries
Submitted by: RavingManiac - 2011-03-27
Your marksdwarves are using adamantine bolts, which are pretty useless against armor due to being incredibly light. Steel is best for projectiles, though bronze and iron are cheaper and can still pierce through armor.
Submitted by: Orkel - 2011-03-27
Yeah, I found out in this very battle about how useless the bolts were. I replaced them afterwards.