3 mm caliber
This article lists firearm cartridges which have a bullet in the .118 in / 3 mm caliber range.
Length refers to the cartridge case length. OAL refers to the overall length of the cartridge. All measurements are in mm (in).
.118 in / 3 mm auto cartridges
| Name | Bullet | Length | Rim | Base | Shoulder | Neck | OAL |
|---|---|---|---|---|---|---|---|
| 3 mm Kolibri | 3.048 (.120) | 8.128 (.320) | 3.810 (.150) | 3.810 (.150) | N/A | 3.810 (.150) | 10.92 (.430) |
| 3 mm US | 3.048 (.120) | 47 (1.85) | 10 (.393) | 10 (.393) | 9.3 (0.366) | 4 (.157) | 55 (2.16) |