This study describes a methodology for comparing two types of tank guns regarding their accuracy performance and dynamic behaviour. Several approaches were used in order to examine and compare the two gun types. Experimental jump firing data for APFSDS ammunition and the corresponding tube curvature data were statistically analyzed. An empirical model that correlates jump error with tube curvature was obtained for each gun type in order to understand the sources of the different jump variability between them. In another approach a numerical simulation of the tube-projectile interaction was conducted in order to compare the dynamic behaviors and projectile impact point of the two gun types. The findings of this study indicate that tube curvature is the most dominant factor that governs jump error. Dynamic behaviour derived from design differences between the gun types had negligible influence on jump error.
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