Caliber Codes for Handguns, Rifles and Machine Guns

Firearms are identified by make, model, serial number, type (rifle, shotgun, etc.) and cartridge-type designation.  Cartridge types are most often expressed in calibers (decimals of an inch) or in millimeters, for example the .357 Magnum and 9 mm Luger.  It is also possible for the same cartridge to have both an English and a metric designation.  For example, the .308 Winchester is also known as the 7.62x51 NATO.  A weapon with this cartridge-type designation could be entered using either CAL 308 or 762.  Entries should be based on the markings on the weapon.

Many ammunition and weapon manufacturers name cartridge types after the company.  One example is the 7 mm Remington Magnum that was developed by the Remington Arms Company.  The manufacturer associated the cartridge type should not be confused with the make of the firearm.  For example, the .38 Smith & Wesson (S&W) Special cartridge was developed by Smith & Wesson, but many companies manufacture weapons chambered for this cartridge type.

The Caliber field is intended to contain the broad cartridge-type designation of a firearm.  Because of the volume of cartridge types and differing methods of measurement used in identifying them, the following table has been prepared to assist in data entry.  The CAL column contains the caliber codes, and the example column contains common cartridge-type designation examples.  In cases of ambiguity in cartridge-type designations, further identifying information, if available, should be placed in the Miscellaneous MIS field.

Users will note that some cartridge types have more than one designation.  Additionally, due to existing programming, the NCIC 2000 System does not distinguish between some cartridge types with similar designations.  The .308 Winchester/762x51 NATO, as noted, could be entered as either 308 or 762.  If entered as 762, no distinction between a 7.62x51 NATO, a 7,62x39 Soviet, or a 7.72 mm Tokarev would be made.  Users should be aware of this when making Gun inquiries, especially if an inquiry leads to multiple hits on firearms with similar cartridge-type designations.

Caliber

Example

6

6MM Remington, .243 Winchester, .240 Weatherby Magnum

7

7mm Remington Magnum, 7mm Bench Rest, 7mm-08, 7mm Weatherby Magnum, 7X57 Mauser, 7.7 Arisaka, .280 Remington, etc.

8

8X57 Mauser, 8mm Lebel, 8mm Remington Magnum

9

9mm Luger/Parabellum/9X19, 9mm Kurz/Corto/9X17 (.380 ACP), 9mm Winchester Magnum, 9mm Browning Long, 9mm Steyr, 9mm Bergmann-Bayard, 9mm Makarov/9X18, 9X21, 9X23, etc.

10

10mm, .40 S & W pistol cartridges; also used for 10-gauge shotgun

11

11mm Mauser

12

12.5mm is metric for .50 Cal Browning Machine Gun round; also used for 12 gauge shotgun

13

13mm Gyrojet rocket pistol/carbine

17

.17 Remington

22

.22 Short/Long/Long Rifle rimfire cartridge family; also .22 Hornet, .22-250, .220 Swift, .222 Remington, .223 Remington, etc.

25

.25 ACP, .25-06, .25-20, .25-35, .250-3000 Savage, etc.

30

.30 M1 Carbine, .30-40 Krag, .30-30 Winchester

32

.32 ACP, .32 Short Colt, .32 Long Colt, .32 H&R Magnum

35

.35 Whelen, .35 Remington, .350 Remington Magnum

36

.36 caliber marking normally found only on black-powder firearms

38

.38 S&W, .38 (S&W) Special, .38 ACP, .38 Super, etc.

40

.40 S&W, 10mm

41

.41 Short Rimfire, .41 Remington Magnum, .41 Action Express, .41 Automag

44

.44-40 Winchester, .44 Russian, .44 Special, .44 Remington Magnum, .44 AutoMag; also used in black-powder firearms

45

.45 ACP, .455 Welbey, .45 AutoRim, .45 Long Colt, .45 Winchester Magnum

50

.50 Browning Machine Gun, .50 Action Express; also used in black-powder firearms

54

Typically used in black-powder firearms

58

Typically used in black-powder firearms; also used in .577 Nitro Express elephant gun

60

Typically used in black-powder firearms; also used in .600 Nitro Express elephant gun

65

6.5mm Carcano; may also appear as .65 caliber on black-powder firearms

75

Could either be a metric caliber (7.5mm) of a .75 caliber.  Use the MIS field to further clarify

177

.177 caliber (.17 caliber) is most often used in airguns

221

.221 Remington Fireball

222

.222 Remington, .222 Remington Magnum

223

.223 Remiongton/5.56 X 45mm NATO

243

.243 Winchester

250

.250-3000 Savage

256

.256 Newton

257

.257 Roberts, .257 Weatherby Magnum

260

.260 Magnum Research Lone Eagle, .260 Remington Model XP100, .260 Savage Striker, .260 Thompson/Center Encore

264

.264 Winchester Magnum

270

.270 Winchester, .270 Weatherby Magnum

280

.280 Remington/7mm Express

284

.284 Winchester

300

.300 Winchester Magnum, .300 weatherby Magnum, .300 Savage, .300 Halland & Holland Magnum

303

.303 British, .303 Savage

308

.308 Winchester/7.62 X 51mm NATO

338

.338 Winchester Magnum

351

.351 Winchester

357

.357 Remington Magnum, .357 Maximum, .357 AutoMag

375

.375 Holland & Holland Magnum, .375 Winchester

380

.380 ACP in U.S.; also known as the 9mm Kurz/Corto/Short, and the 9 X 17 in Europe

401

.401 Winchester

405

.405 Winchester

444

.444 Marlin

455

.455 Webley, or .455 "Manstopper"

458

.458 Winchester Magnum

460

.460 Weatherby Magnum

556

5.56 X 45mm NATO/.223 Remington

635

6.35mm/.25 ACP

762

7.62 X 39 Soviet, 7.62 X 51 NATO/.308 winchester, 7.62 X 54R used in Russian Moisin-Nagant and Dragunov rifles

763

7.63mm/.30 Mauser, 7.62mm Tokarev

765

7.65mm Luger/.30 Luger

3006

.30-06 U.S. (.30 Springfield)

3220

.32-20 Winchester

4570

.45-70 U.S. Government

9999

Used for grenade launchers and guns which fire electronically charged darts