Silver bolts

Silver Bolts are weapons of ranging that can be shot from iron crossbows or better.

To make them you need to mine silver ore (requires Mining level 20), smelt them into silver bars (requires Smithing level 20), use a bolt mould to craft them into unfeathered silver bolts (silver bolts (unf)) (requires Crafting level 21), then finally put feathers into them (requires Fletching level 43). Silver bolts hit approximately the same as bone bolts.

The idea behind these is that you can make crossbow bolts while leveling up Crafting and not Smithing, to hurt Vampyres using Ranged, and to use cheap bolts without using the bone crossbow.