.303 British Headstamps and colour-coding Headstamps and colour-coding

| Headstamp_ID | Primer_Annulus_Color | Bullet_Tip_Color | Other_Features | Functional_Type |
|---|---|---|---|---|
| VII or VIIZ | Purple | None | None | Light Ball |
| VIIIZ | Purple | None | None | Heavy Ball |
| G1, G2, G3, G7 or G8 | Red | None | None | Tracer |
| G4, G4Z, G6 or G6Z | Red | White | None | Tracer |
| G5 or G5Z | Red | Gray | None | Tracer |
| W1 or W1Z | Green | None | None | AP |
| B4 or B4Z | Blue | None | Step in bullet jacket | Incendiary |
| B6 or B6Z | Blue | None | None | Incendiary |
| B7 or B7Z | Blue | Blue | None | Incendiary |
| O.1 | Black | Black | None | Observing |
| PG1 or PG1Z | Red | None | Blue band on case base | Practice-tracer |
| H1Z | None | None | Front half of case blackened | Grenade-Launching |