| Metric calibre (mm) | 6.5 x 52 |
| Imperial calibre (in) | .256 x 2.05 |
| Name: | Carcano |
| Case Type: | Rimless, Bottlenecked |
| Bullet Diameter: | 0.265 |
| Case Length: | 2.05 |
| Rim Diameter: | 0.448 |
| Neck Diameter: | 0.295 |
| Shoulder Diameter: | 0.430 |
| Base Diameter: | 0.445 |
| Total Length: | 3.02 |
| Primer: | Berdan |
| Year Introduced: | 1891 |
| Italy |