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SECTION 2--CALIBER (CAL) FIELD CODES

2.1 CAL FIELD CODES

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 the CAL 308 or 762. Entries should be made 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 with a 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 (CAL) Field is intended to contain the broad cartridge-type designation of a firearm. Because of the volume of cartridge types and the differing methods of measurement used (English, metric, or gauge) in identifying them, the table below has been prepared to assist in data entry. The "CAL" column contains the CAL codes, and the "Common Names/Examples" 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 exisiting programming, the NCIC 2000 System does not distinguish between some cartridge types with similar designations. The .308 Winchester/7.62x51 NATO, as noted above, 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 7.62 mm Tokarev would be made. Users should be aware of this when making Gun File inquiries, especially if an inquiry leads to multiple hits on firearms with similar cartridge-type designations.

CAL 6

Common Names/Examples

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

7

7 mm Remington Magnum, 7 mm Bench Rest, 7 mm-08, 7 mm Weatherby Magnum, 7x57 Mauser, 7.7 Arisaka, .280 Remington, etc.

8

8x57 Mauser, 8 mm Lebel, 8 mm Remington Magnum

9

9 mm Luger/Parabellum/9x19, 9 mm Kurz/Corto/9x17 (.380 ACP), 9 mm Winchester Magnum, 9 mm Browning Long, 9 mm Steyr, 9 mm Bergmann-Bayard, 9 mm Makarov/9x18, 9x21, 9x23/Largo, etc.

10

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

11

11 mm Mauser

12

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

13

13 mm 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.

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