Crossbow Bolts
Crossbow bolts are not explicitly defined in rangedPower function for combat formula, defaulting to 0 ranged strength. Additionally, oyster pearl bolts would also default to 0 strength.
I believe the same to be for all poisoned ammunition.
Wiki isn't super clear, but it says bolts have around the strength between bronze and iron arrows, and oyster pearl bolts mithril. https://classic.runescape.wiki/w/Crossbow_bolts