12 mm caliber

This article lists firearm cartridges which have a bullet 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.
12 mm caliber
Example of a 12-mm cartridge, a .50 Action Express (left) next to a .32 ACP for comparison
Firearm cartridges

Some measurements are in millimetres, others are in calibers, which are measured in inches

Pistol cartridges

NameBulletLengthRimBaseShoulderNeckOAL
.475 Wildey Magnum12.1 (.475)30.4 (1.198)12.0 (.473)12.7 (.501)-12.50 (.493)40.00 (1.575)
.50 Action Express12.7 (.500)32.64 (1.285)13.06 (.514)13.89 (.547)-13.72 (.540)40.89 (1.610)
.50 GI12.7 (.500)22.81 (.899)12.19 (.480)13.36 (.526)-13.36 (.526)31.01 (1.221)

Revolver cartridges

NameBulletLengthRimBaseShoulderNeckOAL
.480 Ruger[1]12.065 (.475)32.639 (1.285)13.767 (.542)12.802 (.504)-12.802 (.504)41.91 (1.650)
.500 S&W Magnum12.7 (.500)41.275 (1.625)14.12 (.556)13.36 (.526)-13.36 (.526)53.34 (2.10)
.500 Wyoming Express12.7 (.500)35 (1.37)----44.8 (1.765)
.500 Linebaugh12.95 (.510)35.69 (1.405)15.49 (.610)14.05 (.553)-13.72 (.540)44.58 (1.755)

Rifle cartridges

NameBulletCase typeCase lengthRimBaseShoulderNeckCartridge lengthPrimer
.475 A&M Magnum[2]12.07 (.475)belted bottlenecked73.66 (2.90)13.54 (.533)14.83 (.584)14.22 (.560)12.75 (.502)95.25 (3.75)Boxer large rifle
.470 Capstick[3]12.07 (.475)-72.39 (2.85)13.51 (.532)13.03 (.513)-12.67 (.499)92.71 (3.65)-
.476 Nitro Express[4]12.09 (.476)rimmed, necked76.2 (3.00)16.33 (.643)14.48 (.570)13.46 (.530)12.9 (.508)95.76 (3.77)Berdan 6.45 (0.254)
.470 Nitro Express[5]12.27 (.483)rimmed, necked88.65 (3.25)16.41 (.646)14.53 (.572)13.41 (.528)12.7 (.500)108.2 (4.26)Berdan 6.45 (0.254)
.475 No. 2 Nitro Express[6]12.27 (.483)rimmed, necked82.55 (3.49)16.86 (.665)14.63 (.576)13.89 (.547)12.95 (.510)98.04 (3.86)Berdan 6.45 (0.254)
.475 Nitro Express[7]12.27 (.483)rimmed, straight82.55 (3.25)16.41 (.646)14.53 (.572)-13.41 (.528)98.04 (3.86)Berdan 6.38 (0.251)
.500 No. 2 Express (.577/500)[8]12.88 (.507)rimmed, necked71.37 (2.81)18.44 (.726)16.28 (.641)14.22 (.560)13.67 (.538)86.36 (3.40)Berdan 6.38 (0.251)
.577/.500 Magnum Nitro Express[9]12.7 (.500)rimmed, necked80 (3.13)18.2 (.717)16.4 (.645)14.9 (.585)13.4 (.526)95 (3.74)Berdan 6.38 (0.251)
.505 Gibbs.505rimless, bottlenecked80.0 (3.150")-16.3 (.640")16.3 (.640")13.7 (.538")97.8 (3.850")
.500 Jeffery.510
.50 Beowulf12.7 (.500)-42 (1.65)11.3 (.445)13.6 (.535)-13.3 (.525)54 (2.125)Boxer
.50 BMG (12.7×99mm NATO)12.95 (.510)-99.31 (3.91)20.42 (.804)20.42 (.804)18.82 (.741)14.22 (.560)138.43 (5.45)Boxer
.510 DTC Europ (.50 DTC)12.95 (.510)-96.77 (3.81)--19.304 (.760)-135.89 (5.35)Boxer
.510 Whisper12.95 (.510)-47.63 (1.875)14.94 (.588)14.91 (.587)14.91 (.587)13.94 (.549)84.84 (3.34)Boxer
12.7×108mm12.98 (.511)-108 (4.3)21.70 (0.854)21.75 (0.856)18.90 (0.744)13.95 (0.549)147.50 (5.807)-
12.7×55mm STs-13013.01 (.512)-54.91 (2.16)-14.86 (0.585)-13.76 (0.54)94 (3.7)-
12.7x81mmSR[10]13.1-81.219.618.3516.313.8108.7-

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

See also

References

  1. Barnes, Frank C. (2006) [1965]. Skinner, Stan (ed.). Cartridges of the World (11th ed.). Iola, WI, USA: Gun Digest Books. p. 313. ISBN 0-89689-297-2.
  2. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World (3d ed.). DBI Books. pp. 142–3. ISBN 0-87349-178-5.
  3. Barnes, Frank C. (1997) [1965]. McPherson, M.L. (ed.). Cartridges of the World (8th ed.). DBI Books. pp. 227, 230. ISBN 0-87349-178-5.
  4. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World (3d ed.). DBI Books. pp. 228, 236. ISBN 0-87349-178-5.
  5. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World (3d ed.). DBI Books. pp. 228, 236. ISBN 0-87349-178-5.
  6. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World (3d ed.). DBI Books. pp. 228, 236. ISBN 0-87349-178-5.
  7. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World (3d ed.). DBI Books. pp. 228, 236. ISBN 0-87349-178-5.
  8. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World. DBI Books. pp. 230, 236. ISBN 0-695-80326-3.
  9. Barnes, Frank C. (1972) [1965]. Amber, John T. (ed.). Cartridges of the World. DBI Books. pp. 230, 236. ISBN 0-87349-178-5.
  10. municion.org, 12.7x81
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