External barrel temperature of a small bore Olympic rifle
Deutscher übersetzter Titel: | Äußere Gewehrlauftemperatur eines olympischen Kleinkalibergewehrs |
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Autor: | Gladyszewska, Bozena; Baranowski, Piotr; Mazurek, Wojciech; Wozniak, Joanna; Gladyszewski, Grzegorz |
Erschienen in: | Biology of sport |
Veröffentlicht: | 30 (2013), 1, S. 47-50, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0860-021X, 2083-1862 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201302001303 |
Quelle: | BISp |
Abstract
Investigations on changes in a rifle’s barrel temperature during shooting in a rhythm typical for practitioners of Olympic shooting sports are presented. Walther KK300 (cal. 5.6 mm), a typical rifle often used in Olympic competitions, R50 RWS ammunition and a high speed thermographic camera were used in the study. Altair version 5 software was used to process thermal images and a stationary wavelet transform was applied to denoise signals for all the studied points. It was found that the temperature of the rifle barrel does not exceed 0.3°C after one shot whereas the total temperature increase does not exceed 5°C after taking 40 shots and does not affect the position of the hitting point on a target. In fact, contrary to popular belief, the so-called “warming shots” are not done for barrel heating but for cleaning of remnants in the barrel. Verf.-Referat