Modern period
Since the mid-18th century North American French-Indian war through the beginning of the 20th century, human-powered weapons were reduced from the primary weaponry of the battlefield yielding to gunpowder-based weaponry. Sometimes referred to as the "Age of Rifles",this period was characterized by the development of firearms for infantry and cannons for support, as well as the beginnings of mechanized weapons such as the machine gun, the tank and the wide introduction of aircraft into warfare, including naval warfare with the introduction of the aircraft carriers.
In modern period they develop weapon from industrial revolution. They creat some weapon that inspiration from guns. That we call "rifle" for hunting deer or any wild animal in forest. A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves "rifling" cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile for small arms usage, called a bullet, imparting spin around an axis corresponding to the orientation of the weapon. When the projectile leaves the barrel, this spin lends gyroscopic stability to the projectile and prevents tumbling, in the same way that a properly thrown American football or rugby ball behaves. This allows the use of aerodynamically-efficient pointed bullets and thus improves range and accuracy. The word "rifle" originally referred to the grooving, and a rifle was called a "rifled gun." Rifles are used in warfare, hunting and shooting sports. Typically, a bullet is propelled by the contained deflagration of an explosive compound originally black powder, later cordite, and now nitrocellulose, although other means such as compressed air are used in air rifles, which are popular for vermin control, hunting small game, formal target shooting and casual shooting "plinking".
About material that use to made handle of rifle is hard wood but light or some times use plastic to make it light for hold and they took a steel to make gun barrel. It hard enough for hit. Next is balance. They made a part "barrel" think and heavy for decrease force that bump person who shoot that show about balance to make you can resist force from rifle and can stand too. Last for a shape that made for easy to use, at back of rifle we can put it between shoulder ( at armpit) for support to hold, at handle they made it curve for put finger in space on rifle. That Shape made it easy to shoot.
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