A cylindro-conoidal bullet is a type of projectile used in firearms, characterized by its elongated shape that tapers to a point at one end. The design combines cylindrical and conoidal (cone-shaped) forms, which allows for improved aerodynamics and accuracy compared to traditional round bullets. The cylindrical portion gives the bullet stability in the barrel, while the conoidal taper helps reduce air resistance during flight.
Decoppering generally refers to the process of removing copper from a material or system. This term is often used in the context of electronics, metallurgy, and environmental sciences. Here are a few contexts in which decoppering might be relevant: 1. **Electronics and Circuit Board Recycling**: In the recycling of electronic waste, decoppering involves the removal of copper traces from circuit boards to recover the metal for reuse or recycling.
The Delta-L problem refers to a challenge in decision theory and artificial intelligence, particularly in the context of designing agents that can make decisions in uncertain environments. It arises from the need to specify a utility function that accurately reflects the preferences of an agent when it is trying to optimize outcomes. The term "Delta-L" specifically comes from a scenario where an agent must choose actions that maximize a utility function over time, but the utility function may not be fully known or may be subject to change.
Dense Inert Metal Explosive (DIME) refers to a type of munition that utilizes a combination of dense materials and inert components to create a powerful explosive effect while minimizing the production of hazardous shrapnel and collateral damage. The key characteristics of DIME include: 1. **Dense Materials**: Typically incorporate a heavy metal, such as tungsten or tantalum, which increases the mass of the explosive and enhances its lethality upon detonation.
Depleted uranium (DU) is uranium that has a lower proportion of the isotope uranium-235 compared to natural uranium. Natural uranium consists of about 0.7% uranium-235 and about 99.3% uranium-238, while depleted uranium typically contains less than 0.3% uranium-235.
The term "Dirty Harry round" typically refers to the .44 Magnum cartridge, which was popularized by the character Harry Callahan, played by Clint Eastwood in the film "Dirty Harry" (1971). In the movie, Harry Callahan famously refers to his .44 Magnum as "the most powerful handgun in the world," highlighting its significant stopping power and effectiveness for law enforcement and self-defense at the time. The .
A "dummy round" generally refers to a type of ammunition that is used for training, testing, or demonstration purposes but is not intended to be fired. Here are a couple of contexts where the term may be used: 1. **Firearms Training**: In the context of firearms, dummy rounds are inert cartridges that may have the same weight and dimensions as live ammunition but contain no propellant or primer.
The European Cartridge Research Association (ECRA) is an organization focused on the study and documentation of ammunition and cartridge development in Europe. It serves as a platform for collectors, researchers, and enthusiasts who are interested in the history, technology, and manufacturing processes of ammunition. The ECRA often engages in activities such as publishing research, organizing exhibitions, and facilitating networking among individuals and institutions interested in cartridge-related topics.
An Explosively Formed Penetrator (EFP) is a type of munition that uses an explosive charge to create a projectile, typically with a high degree of penetration capability. EFPs are designed to defeat armored targets, such as tanks or fortifications, by producing a solid metal projectile that is shaped and accelerated by the explosion.
Fire forming is a technique used primarily in firearms and reloading to shape or resize brass cartridge cases to fit a specific chamber more precisely. During this process, a casing is fired in a specific firearm, which allows the brass material to expand and conform to the dimensions of the chamber. ### Key Points about Fire Forming: 1. **Purpose**: The primary goal is to create a cartridge case that perfectly matches the chamber of a particular firearm, improving accuracy and efficiency by ensuring a tighter fit.
A flechette is a type of projectile that is typically small, thin, and often resembles a steel dart or arrow. Flechettes can be used in various military munitions, such as artillery shells, rockets, and shotgun cartridges. They are designed to penetrate armor and inflict damage over a wide area. Flechette rounds can be highly effective against personnel and light vehicles because their aerodynamic shape allows for high velocity and energy upon impact.
Frangibility refers to the property of a material or object that makes it breakable or easily fractured. In a broader sense, it denotes the ability of a substance to be fragmented or shattered under stress or impact. The term is often used in contexts related to physical materials, such as glass, ceramics, or certain types of plastics, which can exhibit frangibility due to their structure.
A friction primer is a type of coating or preparatory product used to enhance the adhesion of paint or other finishes to a surface, particularly in situations where traditional primers may not perform well. It is especially useful on surfaces that are prone to high friction, such as plastic, metal, or glossy surfaces. Friction primers work by creating a textured surface that increases the bond between the substrate and the topcoat, ensuring better durability and performance.
Fuze is a cloud-based communications platform that provides a variety of services, including video conferencing, voice calling, messaging, and collaboration tools. It is designed primarily for businesses to facilitate communication and teamwork across different locations. Fuze integrates with various productivity applications and offers features such as screen sharing, file sharing, and team messaging, making it suitable for remote work environments and organizations looking to enhance their collaboration capabilities.
"Garden & Gun" is a magazine that focuses on the lifestyle and culture of the American South. It features content related to a variety of topics, including food, art, travel, fashion, and outdoor activities, particularly hunting and fishing. The magazine combines elements of gardening and gun culture, catering to readers who appreciate Southern traditions, rural living, and craftsmanship. It is known for its high-quality photography and storytelling, celebrating the heritage and lifestyle of the Southern United States.
Gilding metal is an alloy typically composed of copper and zinc, with a higher copper content than that found in brass. It is primarily known for its use in applications that require a gold-like appearance, as it can be plated with gold to achieve a decorative finish. The typical composition of gilding metal is around 90% copper and 10% zinc, although variations may exist.
"Gun dynamics" typically refers to the study of the various forces and motions involved in the operation and behavior of firearms when fired. This can encompass a range of topics, including: 1. **Ballistics**: The science that deals with the motion and behavior of projectiles (bullets) in flight, including internal ballistics (inside the gun), external ballistics (in flight), and terminal ballistics (upon hitting a target).
In the context of firearms, "headspace" refers to the distance between the face of the bolt and the part of the chamber that stops the forward motion of the cartridge, typically the shoulder or rim of the cartridge. Proper headspace is critical for the safe and reliable functioning of a firearm. If the headspace is too short, it can prevent the bolt from fully closing, leading to failures to fire or extraction problems.