<Li> Upon the command "present", the butt of the musket was brought to the soldier's right shoulder, while at the same time the soldier lowered the muzzle to firing position, parallel to the ground, and sighting (if the soldier had been trained to fire at "marks") along the barrel at the enemy . </Li> <Li> Upon the command of "fire", the soldier pulled the trigger, and the musket (hopefully) fired . A full second was allowed to pass, and the musket was then quickly lowered to the loading position, butt against the soldier's right hip, muzzle held off center to the left at about a forty - five degree angle, and the soldier would look down at his open pan to determine if the prime had been ignited . </Li> <P> This process was drilled into troops until they could complete the procedure upon hearing a single command of "prime and load". No additional verbal orders were given until the musket was loaded, and the option was either to give the soldiers the command "Make Ready", or to hold the musket for movement with the command of "Shoulder your firelock". The main advantage of the British Army was that the infantry soldier trained at this procedure almost every day . A properly trained group of regular infantry soldiers was able to load and fire four rounds per minute . A crack infantry company could load and fire five rounds in a minute . </P> <P> The development of volley fire--by the Ottomans, the Chinese, the Japanese, and the Dutch--made muskets more feasible for widespread adoption by the military . The volley fire technique transformed soldiers carrying firearms into organized firing squads with each row of soldiers firing in turn and reloading in a systematic fashion . Volley fire was implemented with cannons as early as 1388 by Ming artillerists, but volley fire with matchlocks was not implemented until 1526 when the Ottoman Janissaries utilized it during the Battle of Mohács . The matchlock volley fire technique was next seen in mid 16th century China as pioneered by Qi Jiguang and in late 16th century Japan . Qi Jiguang elaborates on his volley fire technique in the Jixiao Xinshu: </P>

Who pioneered the manufacture and use of muskets with strong steel barrels