Calibre
A calibre (or caliber in American English) is the diameter of the barrel of a gun. For example, a rifle with a diameter of 0.22 inch is a .22 cal. Guns that have a particular calibre are designed to fit and use bullets of the same calibre.
Types of callibre
Callibre is measured in inches, not millimetres. Common callibres include:
| Inch caliber | Metric caliber | Typical bullet diameter |
|---|---|---|
| .172 | 4 mm | 0.172 in |
| .20, .204 | 5 mm | 0.204 in |
| .221 | 5.45 mm | 0.221 in |
| .22 | 5.6 mm | 0.223 in |
| .224 | 5.7 mm | 0.224 in |
| .243 | 6 mm | 0.243 in |
| .25 | 6.35 mm | 0.257 in, 6.35 mm |
| .26 | 6.5 mm | 0.264 in, 6.7 mm |
| .27 | 6.8 mm | 0.277 in, 7.035 mm |
| .284 | 7 mm | 0.284 in, 7.213 mm |
| .308 | 7.62 mm | 0.308 in, 7.82 mm |
| .311 | 7.9 mm | 0.311 in, 7.92 mm |
| .312 | 7.94 mm | 0.312 in, 7.94 mm |
| .323 | 8 mm | 0.323 in, 8.20 mm |
| .327 | 8 mm | 0.327 in, 8.30 mm |
| .338 | 8.6 mm | 0.338 in |
| .355 | 9 mm | 0.355 in |
| .356 | 9 mm | 0.356 in |
| .357 | 9 mm | 0.357 in |
| .363 | 9 mm | 0.363 in |
| .365 | 9.3 mm | 0.365 in |
| .375 | 9.5 mm | 0.375 in, 9.53 mm |
| .40 | 10 mm | 0.400 in |
| .44 | 10.9 mm | 0.429 in |
| .45 | 11.43 mm | 0.451–0.454 in |
| .50 | 12.7 mm | 0.510 in, 12.95 mm |
References
- Accurate (2000). Accurate Smokeless Powders Loading Guide (Number Two (Revised) ed.). Prescott, AZ: Wolfe Publishing. p. 392. barcode 94794 00200.
- "Pistol and Rifle Lead Bullets". Archived from the original on 2020-10-05. Retrieved 2018-10-22.
- "Rifle Bullets". Archived from the original on 2020-10-05. Retrieved 2018-10-22.
- "LeadSafe Total Copper Jacket ("TCJ") Bullet List". Archived from the original on 1999-02-18. Retrieved 2018-10-22.
- Frank C Barnes (2015). Cartridges of the World (14th ed.). Gun Digest Books. ISBN 9781440242656.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.