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Barrel rifling was invented in Augsburg, Germany at the end of the fifteenth century. In 1520 August Kotter, an armourer of Nuremberg, Germany improved upon this work. Though true rifling dates from the mid-16th century, it did not become commonplace until the nineteenth century.espite differences in form, the common goal of rifling is to deliver the projectile accurately to the target. In addition to imparting the spin to the bullet, the barrel must hold the projectile securely and concentrically as it travels down the barrel. This requires that the rifling meet a number of tasks:
1 History of the Colt Revolver. 2  Samuel Colt invented the first revolver-named after its revolving cylinder. 3  He was issued a U.S. patent in 1836 for the Colt firearm equipped with a revolving cylinder containing five or six bullets with an innovative cocking device. John Moses Browning was the prolific gun designer who invented the Winchester rifle (30/30), the pump shotgun, and the Colt 45 automatic. 2  He is best known for his automatic pistols and was the first one to invent the slide, which encloses the barrel of a pistol and the firing mechanism. 3  John Moses Browning.