12 mm caliber

12 mm caliber
Example of a 12 mm cartridge, a .50 Action Express (left) next to a .32 ACP for comparison
«11 mm Firearm cartridges 13 mm»

This is a list of firearm cartridges which have bullets in the 12 millimetres (0.47 in) to 12.99 millimetres (0.511 in) caliber range.

• Length refers to the cartridge case length.
• OAL refers to the overall length of the cartridge.
• Bullet refers to the diameter of the bullet.

Some measurements are in millimetres, while others are measured in inches.