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Obturate
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Geliefert zwischen Mi., 14.01.2026 und Do., 15.01.2026
Details
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Obturate means to block or obstruct. With reference to firearms and airguns, obturation refers to the process of a bullet or pellet, made of soft material and often with a concave base, flaring under the pressure of firing to seal the bore and engage the barrel''s rifling. The mechanism by which an undersized soft metal projectile enlarges to fill the barrel is, for hollow-base bullets, due to expansion from gas pressure within the base cavity and, for solid-base bullets, upsetting - the combined shortening and thickening that occurs when a malleable metal object is struck forcibly at one end. For shotgun shells which have multiple pellets much smaller than the barrel bore, obturation is achieved by placing a plastic wad or biodegradable card of the same diameter as the barrel between the propellant powder and the pellets.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131021879
- Genre Technik
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Anzahl Seiten 124
- Herausgeber Betascript Publishing
- Größe H220mm x B220mm
- EAN 9786131021879
- Format Fachbuch
- Titel Obturate
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