12 mm caliber

This is a list of firearm cartridges which have bullets in the to 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.

Pistol cartridges

Revolver cartridges

Name	Bullet	Case length	Rim	Base	Shoulder	Neck	OAL
.480 Ruger	12.065	32.639	13.767	12.802	-	12.802	41.91
.475 Linebaugh					-
.500 S&W Special	12.7	32.4	14.12	13.36	-	13.36	44
.500 Wyoming Express	12.7	35	13.8	13.7	-	-	44.8
.500 Linebaugh	12.95	35.69	15.49	14.05	-	13.72	44.58
.500 S&W Magnum	12.7	41.275	14.12	13.36	-	13.36	53.34
.500 Bushwhacker	12.7	62	14.12	13.36	-	13.36	75

Rifle cartridges

Name	Bullet	Case type	Case length	Rim	Base	Shoulder	Neck	OAL	Primer
.475 A&M Magnum	12.07	Belted, bottleneck	73.66	13.54	14.83	14.22	12.75	95.25	Boxer large rifle
.470 Capstick	12.07	-	72.39	13.51	13.03	-	12.67	92.71	-
.476 Nitro Express	12.09	Rimmed, bottleneck	76.2	16.33	14.48	13.46	12.9	95.76	Berdan 6.45
.470 Nitro Express	12.27	Rimmed, bottleneck	88.65	16.41	14.53	13.41	12.7	108.2	Berdan 6.45
.475 No. 2 Nitro Express	12.27	Rimmed, bottleneck	82.55	16.86	14.63	13.89	12.95	98.04	Berdan 6.45
.475 Nitro Express	12.27	Rimmed, straight	82.55	16.41	14.53	-	13.41	98.04	Berdan 6.38
.577/.500 Magnum Nitro Express	12.7	Rimmed, bottleneck	80	18.2	16.4	14.9	13.4	95	Berdan 6.38
.50 Beowulf	12.7	Rebated-rim, straight	42	11.3	13.6	-	13.3	54	Boxer
.50 Alaskan	12.95	Rimmed, straight	53	15.5	14	-	13.6	53	-
.500 Auto Max	12.7	Rimless, straight	14.12	13.36	-	13.36	53.34	-	-
.505 Gibbs	12.8	Rimless, bottleneck	80.0	-	16.3	16.3	13.7	97.8
.500 No. 2 Express	12.88	Rimmed, bottleneck	71.37	18.44	16.28	14.22	13.67	86.36	Berdan 6.38
.500 Jeffery	12.95	Rebated-rim, bottleneck	70	14.6	15.7	15.4	13.7	87.88
.50 BMG	12.95	-	99.31	20.42	20.42	18.82	14.22	138.43	Boxer
.510 DTC Europ	12.95	-	96.77	-	-	19.304	-	135.89	Boxer
.510 Whisper	12.95	-	47.63	14.94	14.91	14.91	13.94	84.84	Boxer
12.7×108mm	12.98	-	108	21.70	21.75	18.90	13.95	147.50	-
12.7×55mm STs-130	13.01	-	54.91	-	14.86	-	13.76	94	-
12.7x81mmSR	13.1	-	81.2	19.6	18.35	16.3	13.8	108.7	-

''Note: The.50 Sharps, Winchester, and US Government cartridges are actually of 13 mm caliber''