The ballistic performance of a .577/450 is somewhat similar to that of an American .45/70 Government round, as used prolifically throughout the American Frontier West and by buffalo hunters, though the .577/450 has more power due to its extra 15 grains of black powder inside the cartridge case. It is clear from early medical field surgeons' reports that at 200 yards the rifle really came into its own, and inflicted devastating and horrific wounds on the Zulus in the Anglo–Zulu War. The MK2 Martini's sights are marked to 1,800 yards, but this setting was only ever used for long-range mass volley firing to harass an artillery position or a known massed cavalry position, prior to a main fight, and to prevent or delay infantry attacks. A similar "drop volley sight" whereby the rifle's bullets were dropped long range onto the target were employed on the later .303 Lee–Enfield rifles of WW1, which had a graduation lever sight calibrated up to 2,800 yards.