Resident Evil 3 introduces a basic crafting system for ammunition. You'll find various types of Gunpowder:

- Gunpowder A: Creates Handgun Ammo.
- Gunpowder B: Creates Shotgun Ammo.
- Gunpowder C: Creates Grenade Rounds (when combined with a Grenade Launcher).
Combine different types of gunpowder to create more powerful ammunition:
- Gunpowder A + A: More Handgun Ammo.
- Gunpowder B + B: More Shotgun Ammo.
- Gunpowder A + B: Grenade Rounds.
- Gunpowder C + C: Magnum Ammo.
The Reloading Tool is a key item that allows you to combine gunpowder. Always keep an eye out for gunpowder, as it's your primary source of ammunition. Strategic crafting can ensure you never run out of your preferred ammo type.