Training cartridge equivalent to M55A2. Suitable for use in M39 and M61 cannons. It may be offered linked with the TP-T version, in different configurations.
| Normative reference | MIL-C-46552C |
| Projectile type | Target Practice |
| Projectile weight | 98.5 g / 1520 gr |
| Velocity at 7.5 m | 1000 m/s 3281 ft/s |
| Energy at 7.5 m | 49250 J |
| Case | Brass |
| Watertightness | Yes |
| Service temperature | 54°C to +21°C |
| -65°F to 125°F |