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Rimfire Ammunition
Rimfire ammunition is a type of firearm metallic cartridge whose primer is located within a hollow circumferential rim protruding from the base of its casing. When fired, the gun's firing pin will strike and crush the rim against the edge of the barrel breech, sparking the primer compound within the rim, and in turn ignite the propellant within the case. Invented in 1845, by Louis-Nicolas Flobert, the first rimfire metallic cartridge was the .22 BB Cap (a.k.a. 6mm Flobert) cartridge, which consisted of a percussion cap with a bullet attached to the top. While many other different cartridge priming methods have been tried since the 19th century, only rimfire and the later centerfire cartridges survive to the present day with regular usages. The .22 Long Rifle rimfire cartridge, introduced in 1887, is by far the most common ammunition in the world today in terms of units sold. Characteristics Rimfire ammunition is so named because the firing pin strikes and crushes the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rim Fire
The Rim Fire was a massive wildfire that started in a remote canyon in Stanislaus National Forest, in California. This portion of the central Sierra Nevada (U.S.), Sierra Nevada spans Tuolumne County, California, Tuolumne and Mariposa County, California, Mariposa counties. The fire started on August 17, 2013, during the 2013 California wildfires, 2013 California wildfire season, and grew to be (at the time) the second-largest wildfire in California's recorded history and the largest recorded in the Sierra Nevada, having burned . , the Rim Fire was California's List of California wildfires, 11th-largest modern wildfire. The Rim Fire was fully contained on Thursday, October 24, 2013, after a nine-week suppression effort by firefighters. Due to a lack of winter rains, some logs smoldered in the interior portion of the fire footprint throughout the winter. More than a year passed before it was declared out on November 4, 2014. The fire was caused by a hunter's illegal fire that got ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propellant
A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or other motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, the engine that expels the propellant is called a reaction engine. Although technically a propellant is the reaction mass used to create thrust, the term "propellant" is often used to describe a substance which is contains both the reaction mass and the fuel that holds the energy used to accelerate the reaction mass. For example, the term "propellant" is often used in chemical rocket design to describe a combined fuel/propellant, although the propellants should not be confused with the fuel that is used by an engine to produce the energy that expels the propellant. Even though the byproducts of substances used as fuel are also often used as a reaction mass to create the thrust, such as with a chemical rocket engine, propellant and fuel are two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smith & Wesson Model 1
The Smith & Wesson Model 1 was the first firearm manufactured by Smith & Wesson, with production spanning the years 1857 through 1882. It was the first commercially successful revolver to use rimfire cartridges instead of loose powder, musket ball, and percussion caps. It is a single-action, tip-up revolver holding seven .22 Short black powder cartridges. History Early history As Samuel Colt's patent on the revolver was set to expire in 1856, Horace Smith and Daniel B. Wesson were researching a prototype for a metallic cartridge revolver. When they discovered that a former Colt employee named Rollin White held the patent for a "Bored-through" cylinder, a component needed for this new invention, the two partners approached White to manufacture a newly designed revolver-and-cartridge combination. Rather than make White a partner in their company, Smith and Wesson paid him a royalty of $0.25 on every "Model 1" revolver that they made. It would become White's responsibility to de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smith & Wesson
Smith & Wesson Brands, Inc. (S&W) is an American firearm manufacturer headquartered in Springfield, Massachusetts, United States. Smith & Wesson was founded by Horace Smith and Daniel B. Wesson as the "Smith & Wesson Revolver Company" in 1856 after their previous company, also called the "Smith & Wesson Company" and later renamed as "Volcanic Repeating Arms", was sold to Oliver Winchester and became the Winchester Repeating Arms Company. The modern Smith & Wesson had been previously owned by Bangor Punta and Tomkins plc before being acquired by Saf-T-Hammer Corporation in 2001. Smith & Wesson was a unit of American Outdoor Brands Corporation from 2016 to 2020 until the company was spun out in 2020. On September 30, 2021, Smith & Wesson announced plans to move its headquarters to Maryville, Tennessee in 2023, citing an unfavorable business environment in Massachusetts. History Volcanic Repeating Arms Horace Smith and Daniel B. Wesson founded the Smith & Wesson Company in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parlor Gun
A gallery gun, Flobert gun, parlor gun or saloon gun is a type of firearm designed for recreational indoor target shooting. These guns were developed in 1845, when French inventor Louis-Nicolas Flobert created the first rimfire metallic cartridge by modifying a percussion cap to hold a small lead bullet. In the 19th century, gallery guns were typically pump-action rifles chambered in .22 Short. Gallery guns are still manufactured, although by the late 20th century, they have been eclipsed by airguns for the purpose of indoor shooting. Gallery guns Gallery guns are smallbore, single-shot or pump-action rifles, typically chambered in .22 Short. Some of the more popular guns are the Winchester Model 1890, Colt Lightning Carbine, Gevarm open bolt and the Winchester Model 62. Home shooting parlors and galleries began to decline in the early 20th century. However, gallery guns went on to be used in shooting galleries in carnivals, fairs and amusement parks. By the late 20th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6mm Flobert
This is a list of firearm cartridges which have bullets of a caliber between and . *''Length'' refers to the cartridge case length *''OAL'' refers to the overall length of the cartridge Measurements are in millimeters then inches, i.e. ''mm (in)''. Pistol cartridges Rifle cartridges .24 in (6.2 mm) .25 in (6.5 mm) .264 in (6.6 mm) and up See also *.25 caliber .25 caliber may refer to the following firearms cartridges: Pistol cartridges .25 in (6.5 mm) See also * 6 mm caliber References {{Set index article Pistol and rifle cartridges ... References {{Firearm cartridge calibers Pistol and rifle cartridges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batch Production
Batch production is a method of manufacturing where the products are made as specified groups or amounts, within a time frame. A batch can go through a series of steps in a large manufacturing process to make the final desired product. Batch production is used for many types of manufacturing that may need smaller amounts of production at a time to ensure specific quality standards or changes in the process. This is opposed to large mass production or continuous production methods where the product or process does not need to be checked or changed as frequently or periodically. Characteristics In the manufacturing batch production process, the machines are in chronological order directly related to the manufacturing process. The batch production method is also used so any temporary changes or modifications can be made to the product if necessary during the manufacturing process. For example, if a product needed a sudden change in material or details changed, it can be done in be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economics Of Scale
In microeconomics, economies of scale are the cost advantages that enterprises obtain due to their scale of operation, and are typically measured by the amount of output produced per unit of time. A decrease in cost per unit of output enables an increase in scale. At the basis of economies of scale, there may be technical, statistical, organizational or related factors to the degree of market control. This is just a partial description of the concept. Economies of scale apply to a variety of the organizational and business situations and at various levels, such as a production, plant or an entire enterprise. When average costs start falling as output increases, then economies of scale occur. Some economies of scale, such as capital cost of manufacturing facilities and friction loss of transportation and industrial equipment, have a physical or engineering basis. The economic concept dates back to Adam Smith and the idea of obtaining larger production returns through the use o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manufacturing Process
Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a range of human activity, from handicraft to high-tech, but it is most commonly applied to industrial design, in which raw materials from the primary sector are transformed into finished goods on a large scale. Such goods may be sold to other manufacturers for the production of other more complex products (such as aircraft, household appliances, furniture, sports equipment or automobiles), or distributed via the tertiary industry to end users and consumers (usually through wholesalers, who in turn sell to retailers, who then sell them to individual customers). Manufacturing engineering is the field of engineering that designs and optimizes the manufacturing process, or the steps through which raw materials are transformed into a final product. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Production Cost
Cost of goods sold (COGS) is the carrying value of goods sold during a particular period. Costs are associated with particular goods using one of the several formulas, including specific identification, first-in first-out (FIFO), or average cost. Costs include all costs of purchase, costs of conversion and other costs that are incurred in bringing the inventories to their present location and condition. Costs of goods made by the businesses include material, labor, and allocated overhead. The costs of those goods which are not yet sold are deferred as costs of inventory until the inventory is sold or written down in value. Overview Many businesses sell goods that they have bought or produced. When the goods are bought or produced, the costs associated with such goods are capitalized as part of inventory (or stock) of goods. These costs are treated as an expense in the period the business recognizes income from sale of the goods. Determining costs requires keeping records of g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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