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A Kropatschek is any variant of a rifle designed by Alfred von Kropatschek.Kropatschek's rifles used a tubular magazine (constructed of nickel-plated steel) of his design, of the same type used in the Japanese Murata Type 22 and the German Mauser Gewehr 1871/84.
Ejection charge (commonly Black Powder), [1] also called expelling charge, is a pyrotechnic composition, a type of a pyrotechnic gas generator designed to produce a small short-term amount of thrust to burst open a container and eject its content. In model rocketry, ejection charges are used to deploy a recovery system (usually parachute or
The initials YKK stand for Yoshida Kōgyō Kabushiki gaisha (吉田工業株式会社, lit. "Yoshida Manufacturing Corporation") , which was the name of the company from 1945 until 1994. YKK produces fasteners and architectural products at 112 YKK facilities in 70 countries worldwide.
In comparison with black powder, BPN burns significantly hotter and leaves more of solid residues, therefore black powder is favored for multiple-use systems. BPN's high temperature makes it suitable for uses where rapid and reproducible initiation is critical, e.g. for airbags, rocket engines, and decoy flares. It is however relatively expensive.
The term black powder was coined in the late 19th century, primarily in the United States, to distinguish prior gunpowder formulations from the new smokeless powders and semi-smokeless powders. Semi-smokeless powders featured bulk volume properties that approximated black powder, but had significantly reduced amounts of smoke and combustion ...
Even in the absence of commercially available ammunition, homemade black powder weapons can be used; such firearms were the subject of a crackdown in the People's Republic of China in 2008. [6] In many areas of Africa, such as Zimbabwe, poachers use improvised muskets and shotguns loaded with black powder stolen from mines. [57]
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Black powder cartridge refers to firearms ammunition from the period after the introduction of metallic cartridge, but prior to the wide adoption of smokeless powder.These cartridges (frequently but not always single-shot) had adopted the new technology of complete cartridges including a brass casing which held the powder charge, bullet, and primer.