In April 2012, reports surfaced that G36 rifles used in Afghanistan would overheat during prolonged firefights after several hundred rounds were fired. Overheating affected the accuracy of the G36, making it difficult to hit targets past 100 meters, ineffective past 200 meters, and incapable of effective fire past 300 meters. The G36 has been called unsuitable for long battles. H&K said the rifle was not designed for sustained, continuous fire, but German soldiers gave no negative feedback. Operational commanders advised allowing the weapon to cool between periods of rapid shooting.