Rust Manual

Standard Ammo

5 possible drops, resolved through every nested sub-table down to real items.
Pistol BulletPistol BulletAmmunition15x44.4%
5.56 Rifle Ammo5.56 Rifle AmmoAmmunition12x44.4%
12 Gauge Buckshot12 Gauge BuckshotAmmunition6x5.1%
12 Gauge Slug12 Gauge SlugAmmunition4x3%
12 Gauge Incendiary Shell12 Gauge Incendiary ShellAmmunition4–8x3%

Chance the item is included whenever this table rolls. Approximate — doesn't account for seasonal or event-restricted rotations.