Measuring ballistic dispersion for the purpose of ammunition quality assurance

Abstract

There are a variety of measures of ballistic dispersion.We examine which is best in the context of quality assurance for ammunition. It has been shown that the measure of ballistic dispersion currently used by the US and Canadian militaries for the purpose of ammunition quality assurance is not the most powerful in the case where the fall of shot follows a circular normal distribution. Here we consider the more general case of a general bivariate normal with unequal component variances.