Machine Gun Ammo

On Insanity the first ones are in the Gallery Corridor (20) and Filing Storeroom (40) warped closets (Leon, ch04), before he owns a gun that uses it; on the other difficulties, in Raccoon City East (ch09): the Underground Parking Garage trucks (20 + 20), Cedarbrook Foyer (20 + 10), Ridgewood Station (25), the Logistics Warehouse 4F Terrace (30) and Building 2 Rooftop (20). Raccoon City Center Side Street (60) and the Blackthorn Station B2 West Platform (30) (ch12); Gene Vault (70, ch15).

Ammo for the Gal, the Stiri REVO3 A1 and the Clatter Carbine.

Scrap + Gunpowder (Small) (Leon, ×40)

Buy: 800 credits per 20 (40 a round); sell: 20 a round. Sources disagree on whether the recipe takes 1 or 2 Scrap: carry 2. There are only 2 Gunpowder (Small) in the game and you need this recipe for Master Craftsman.