In the immediate aftermath of the war, the French put a much greater emphasis on improving their field artillery. The failure of French artillery during the 1870–71 campaign served as a strong incentive to fast track the De Bange field artillery piece (1877) and eventually the well-known Canon de 75 modèle 1897 field gun. At a normal 15 shells per minute rate of fire, one single 75 mm gun could deliver 4,350 lethal shrapnel balls within one minute, up to 6 km away, versus the 75 bullets per minute that were delivered at up to 2 km distance by one Reffye mitrailleuse. Evidently, weapon system efficiency had increased by two orders of magnitude in 30 years.