| DOD AMMUNITION CODE | 1315-C055 |
| CARTRIDGE CASE MATERIAL | STEEL |
| CARTRIDGE DESIGN TYPE | TARGET PRACTICE |
| CARTRIDGE MODEL NUMBER | M309A1 |
| FUZE MODEL NUMBER | M73 |
| FUZE TYPE | DUMMY |
| MUZZLE VELOCITY | 990.0 FEET PER SECOND NOMINAL |
| PROPELLANT CHARACTERISTIC MARKINGS | REQUIRED |
| PROPELLING CHARGE FEATURE TYPE | FLASHLESS |
| PROXIMITY FUZE ADAPTABILITY | NOT ADAPTABLE |
| PROJECTILE FILLER TYPE | CRUDE POLYCHLORNAPTHALENE AND DIATOMACEOUS EARTH MIXTURE |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY CARTRIDGE MODEL NUMBER,FUZE TYPE,FUZE MODEL NUMBER,PROJECTILE FILLER TYPE,UNIT PACKAGE QUANTITY,UNIT PACKAGE TYPE,AND PACKAGE MODEL NUMBER |
| WEAPON FOR WHICH DESIGNED | RIFLE M20 AND RIFLE T21 AND RIFLE T21E4 |
| SUPPLEMENTARY CHARGE | NOT INCLUDED |