Bullet Crafting (also known as Making Bullet), it's a custom skill from Gunslinger class original from RagnaHeim. This skill can be learned through Quest.

Effect

Craft bullets from an specific item. This skill cannot be used under overweight (50% weight).

Quest

The NPC of the quest can be found at the entrance of the Gunslinger Guild, in Einbroch.

The NPC will ask us for the following items: Rusty Screw x30 Jubilee x50 Maneater Blossom x5

Crafting

Material	Result
Red Blood	200 Flare Bullets
Crystal Blue	200 Ice Bullets
Wind of Verdure	200 Lightning Bullets
Green Live	200 Earth Bullets
Flame Heart	600 Flare Bullets
Mystic Frozen	600 Ice Bullets
Rough Wind	600 Lightning Bullets
Great Nature	600 Earth Bullets
Rune of Darkness	200 Shadow Bullets