In 1790 the Prussian Army conducted firing tests with its 1782 musket. The results were hardly impressive, given that the target, supposed to represent the front of an infantry company (32m by 1.8m) was actually a solid framework covering roughly 42% more surface area than would actually be occupied by the troops (30 sq m rather than 52 sq m). Moreover, the firing troops were performing under ideal conditions, with no one shooting back.
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[Color=silver]Prussian Musketry Trials
Range Hits
300m 20%
200 25
140 40
70 70[/Color]
In a later test, in which the target surface was actually painted with the figures of troops in ranks about 25 percent of the rounds would entirely missed the "men" eevn at 70 meters. Moreover, rounds hitting the painted figures were not necessarily indicative of disabling wounds, since many struck hats, and coat tails, and accoutrements.
An analysis of combat statistics suggests that no more than 15 percentof the rounds fired seem to have hit anyone. And range was important to lethality. Beyond 100 meters serious casualties were relatively few, at 50 meters the slaughter could be terrific. It was these basic facts which molded tactics. Firepower could be lethal only if delivered in great volume at close range on a relatively narrow front. By forming troops up virtually shoulder to shoulder in two or three lines one could maximize their fire effectiveness.