| Weight of complete round: 2.15 kg. (4.75 pounds). |
| Weight of projectile, filled (fuzed): 2.58 kg. (3.25 pounds). |
| Weight of filling: No data. |
| Filling: No data. |
| Diameter at bourrelet: 57 mm (2 1/4 inches). |
| Length of projectile (without fuze): 163 mm (6 17/64 inches). |
| Length of propellant case: 121 mm (4 3/4 inches). |
| Length of assembled round: 270 mm (10 5/8 inches). |
| Width of rotating band: 11 mm. |
| Weapons in which used: Ho-401 aircraft cannon. |
| Fuzing: No data. |
| Propellant: No data. |
|
Figure 235 – 57-mm Ho-401 High-Explosive
Projectile. |