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Citation |
Gladyszewska B, Baranowski P, Mazurek W, Woźniak J, Gladyszewski G. Biol. Sport 2013; 30(1): 47-50. |
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Affiliation |
Department of Applied Physics, Lublin University of Technology, Lublin, Poland. |
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Copyright |
(Copyright © 2013, Instytut Sportu, Publisher PWN-Polish Scientific Publishers) |
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DOI |
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PMID |
24744465 |
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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. Language: en |