13 mm caliber

This is a list of firearm cartridges which have bullets that are to in caliber.

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

All measurements are in mm.

13 mm cartridges

Note that dimensions do not always reflect the actual dimensions.

Dimensions	Name	Date	Bullet diameter	Case length	Rim	Base	Shoulder	Neck	Cartridge length
12.7×45mmR	.[50-70 Government]						N/A
	13mm Gyrojet	1960s		-	-	-	-	-
13×32mmR							-
13×35mmR	.[500 Linebaugh]						-
13×61mmR	.50-110 Winchester						-
13×63mmR							-
13×64mm
13×64mmR	.[50-90 Sharps]
13×76mmR	.500 [Nitro Express]						-
13×83mmR	.[50-140 Sharps]						-
13×87mmR							-
13×94mm							-

13.2 mm cartridges

13.3–13.9 mm cartridges