The ease of loading the smoothbore musket allowed soldiers to fire quickly, but the shots were not likely to hit their targets. Accuracy and range were not the weapon’s strengths. In fact, firing one of these guns would be similar to shooting a marble from a modern shotgun. The weapon did not even have a rear sight for precise aiming because aiming was a fruitless effort. The statistics boil down to this: at 40 yards, the flintlock smoothbore could usually hit a target measuring 1 square foot, but at 300 yards, only 1 shot in 20 would hit a target of 18 square feet. As Colonel George Hanger, a British officer who fought in the American Revolution, wrote in 1814:

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A soldier’s musket if not exceedingly ill-bored (as many are), will strike the figure of a man at 80 yards, perhaps even at 100; but a soldier must be very unfortunate indeed who shall be wounded by a common musket at 150 yards, providing his antagonist aims at him; and as for firing at a man at 200 yards with a common musket, you might just as well fire at the moon and have the same hope of hitting your object. I do maintain and will prove, whenever called on, that no man was ever killed at 200 yards by a common soldier’s musket by the person who aimed at him.

The chance of firing a smoothbore musket and hitting something beyond rock-throwing range was slim, but there was an alternative weapon: the rifle. The venerable Kentucky flintlock rifle, for example, the weapon favored by frontiersmen and by sharpshooters in the American Revolution, was extremely accurate at long ranges. Common practice targets were the head of a tack at 20 yards, the head of a turkey at 100 yards, and the body of a turkey at 200 yards–challenging targets even for today’s sharpshooters with modern rifles and telescopic sights. At 400 yards, an American soldier with a Kentucky rifle could easily hit a target as large as a horse, a fact that made British cavalrymen very uneasy.

The problem with the rifle of the time was that loading it was a difficult and slow process. Because the ammunition had to fit inside the barrel tightly in order to fit in the spiral rifling grooves, soldiers had a tough job forcing it down from the muzzle, especially under combat conditions, when repeated firing quickly filled the grooves with the residue of burnt powder. Before long, the rifleman literally had to pound the tight-fitting bullet down the barrel. As a result, the rifle’s rate of fire was only one-third of the smoothbore’s, making the gun impractical for general military use. Soldiers were better off firing three or four shots a minute in the general direction of an approaching enemy unit than firing once a minute with pinpoint accuracy at individual targets.

What the infantryman needed was a firearm that combined the best of the smoothbore flintlock musket with that of the rifle–a gun that was easy to load and could hit a small target at 200 yards. That gun was the muzzleloading rifle-musket, and with it came the improved bullet that made it possible. Known to common soldiers as the minié ball (which they pronounced “minnie ball”), the conical bullet could be loaded quickly and easily down a rifle’s muzzle and still fit the barrel’s rifling grooves tightly when fired. But before all this came to bear, inventors and sportsmen were working to perfect a new ignition system.

In 1807, the Reverend Alexander Forsyth, a Presbyterian minister from Belhelvie, Scotland, patented a new, more reliable ignition system than the flintlock system. Rather than have a shower of sparks ignite loose gunpowder, Forsyth employed a flat-nosed hammer to strike powdered fulminate of mercury, which detonated on contact, setting off the main charge of gunpowder inside the barrel. In 1814, Joshua Shaw of Philadelphia improved on Forsyth’s system by packing the fulminate inside a small iron cap and placing it on a hollow nipple fixed to the gun barrel, and in 1816, he replaced the iron with copper. The copper percussion cap was easy to use and virtually impervious to water and wind.

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