While principally a .303-inch (7.7mm) gun, the Vickers mechanism was transferred into many different calibres and used by many different countries around the World.
The complete range of calibres in which the Vickers produced or used is:
| Metric calibre (mm) | Description | Link |
| 6.5 | Italian | Click here |
| 6.5 x 50 | Japanese Type 38 | Click here |
| 6.5 x 54 R | Dutch | Click here |
| 7 x 57 | Mauser | Click here |
| 7.11 | Canadian (.280-inch) | Click here |
| 7.5 x 55 | Swiss | Click here |
| 7.62 x 51 | NATO | Click here |
| 7.62 x 54 R | Russian | Click here |
| 7.62 x 63 | .30-06 | Click here |
| 7.65 x 53 R | Argentinian Mauser | Click here |
| 7.65 x 53 R | Belgian Mauser | Click here |
| 7.65 x 53 R | Mauser | Click here |
| 7.7 | British (.303-inch) | Click here |
| 7.7 x 58 SR | Japanese Type 58 | Click here |
| 7.92 x 57 | German | Click here |
| 8 | Danish | Click here |
| 8 | Lebel | Click here |
| 8 x 52 R | Siamese | Click here |
| 11 x 59 R | Gras | Click here |
| 12.7 x 81 | v/580 | Click here |
| 12.7 x 81 SR | v/565 | Click here |
| 12.7 x 120 SR | v/664 & v/690 | Click here |
| 13.9 x 99 R | .55-inch | Click here |
| 16.8 x 149 SR | .661-inch | Click here |
| 25.4 | 1-inch | Click here |
| 37 x 61 | 1-pdr | Click here |
| 37 x 69 R | 1-pdr | Click here |
| 40 x 158 R | Class 'S' | Click here |
The following abbreviations are used in the above table:
An Excel spreadsheet with all these cartridges and the countries that used them is available on the downloads page under calibres.xls and a 'Comma-Seperated-Values' version under calibres.csv