Machine Gun Metal

Gunmetal

Gunmetal, also known as red brass in the United States, is a type of bronze – an alloy of copper, tin, and zinc. Proportions vary, but 88% copper, 8–10% tin, and 2–4% zinc is an approximation. Originally used mainly for making guns, it has largely been replaced by steel for that purpose. Gunmetal casts and machines well, and is resistant to corrosion from steam and salt water. It is used to make steam and hydraulic castings, valves, gears, statues, and various small objects, such as buttons. It has a tensile strength of 221 megapascals (32,100 psi) to 310 megapascals (45,000 psi), a specific gravity of 8.7, a Brinell hardness of 65 to 74, and a melting point of around 1,000 degrees Celsius.

Machine gun

A machine gun (MG) is a fully automatic and rifled firearm designed for sustained direct fire. Automatic firearms of 20 mm (0.79 in) caliber or more are usually classified as autocannons rather than machine guns.

Machine

A machine is a thermodynamic system that uses power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines. Machines can be driven by animals and human power, by natural forces such as wind and water, and by chemical, thermal, or electrical power, and include a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems.

Gun

A gun is a device that propels a projectile using pressure or explosive force. The projectiles are typically solid, but can also be pressurized liquid, or gas. Solid projectiles may be free-flying or tethered. A large-caliber gun is also called a cannon, while a hand-held gun may be called a firearm. Guns were designed as weapons for military use, and then found use in hunting.

machine

Noun

1. A device that directs and controls energy, often in the form of movement or electricity, to produce a certain effect.
2. A vehicle operated mechanically, such as an automobile or an airplane.

Verb

1. To make by machinery.
2. To shape or finish by machinery; to shape subtractively by metal-cutting with machine-controlled toolpaths.

gun

Symbol

1. ISO 639-3 language code for Mbya Guarani.

Noun

1. A device for shooting projectiles or ditto (a shooter), functioning through stored energy: a firearm, cannon, harpoon gun/spear gun, raygun, etc, not a bow and arrow, or slingshot.
2. A very portable, short firearm, for hand use, which fires bullets or projectiles, such as a handgun, revolver, pistol, or Derringer.

metal

Noun

1. Chemical elements or alloys, their ores, and the mines where their ores come from.

Adjective

1. Characterized by strong drum-beats and distorted guitars. .mw-parser-output .defdate{font-size:smaller}
2. Having the emotional or social characteristics associated with metal music; brash, bold, frank, unyielding, etc.