Hetman - I am not sure you are right about musketfire in Napoleonic times. At close range, I suspect a volley could be decimate an approaching close ordered formation. My reading of encounters between French and British infantry in that period is that firepower was sufficiently effective to make melee with the bayonet very rare. Typically, British musketry would halt a French infantry advance - the French would try to respond in kind rather than charge home - and often could be sufficiently effective to make the French break in the face of a subsequent British charge.
Even today Americans estimate many hundreds of rounds are fired off for every enemy killed - but that does not mean modern firepower is ineffective.
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