External barrel temperature of a small bore Olympic rifle

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.
© Copyright 2013 Biology of Sport. Termedia Publishing House. Published by Institute of Sport Warsaw. All rights reserved.

Subjects: shooting rifle shooting temperature sports equipment
Notations: biological and medical sciences training science technical sports
DOI: 10.5604/20831862.1029821
Published in: Biology of Sport
Published: Warsaw Institute of Sport Warsaw 2013
Volume: 30
Issue: 1
Pages: 47-50
Document types: article
Language: English
Level: advanced