| Metric calibre (mm) | 7.7 |
| Imperial calibre (in) | .303 |
| Ammunition details of Cartridges, S.A. Ball, .303-in., Mk. 8z | |
| Muzzle velocity | Calculated at 90 ft. - 2440 +- 40 f.p.s |
| Chamber pressure | 19 tons per sq. in. (approx.) |
| Cartridge | Rimmed. Colour of annulus - purple. |
| Bullet | Nose - pointed. Base - flat. Form - "boat tail" - streamlined. Envelope - gilding metal. Core - lead and antimony 90/10. Weight - 175 gr. (approx.) |
| Propellent | N.C. Charge - 36.5 gr. |
| Extreme range | 4500 yd. |
| Figure of merit | 8 in. at 600 yd. |