TY  - JOUR
PY  - 2013//
TI  - External barrel temperature of a small bore olympic rifle and shooting precision
JO  - Biology of sport
A1  - Gladyszewska, B.
A1  - Baranowski, P.
A1  - Mazurek, W.
A1  - Woźniak, J.
A1  - Gladyszewski, G.
SP  - 47
EP  - 50
VL  - 30
IS  - 1
N2  - 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.<p />  <p>Language: en</p>
LA  - en
SN  - 0860-021X
UR  - http://dx.doi.org/10.5604/20831862.1029821
ID  - ref1
ER  -