Here is a simple secret of distinguishing bad and good books about early modern warfare. Bad books simply tell you that small firearms of the age were so inaccurate that soldiers had to come very close to the enemy in order to hit him. Good books go further and show a difference between accuracy of harquebuses and muskets in tests and in real battles. But still a question is often left unanswered – who is to blame for that inaccuracy? Soldiers or handguns? In other words, did soldiers use their firearms to its full potential? Lets dissect this problem and find the answer.