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The spin damping moment Abbreviations cspin Spin damping moment coefficient; cspin(B,Ma.Re) MS Spin damping moment More Abbreviations Explanation Skin friction at the bullet's surface retards its spinning motion. The spin damping moment (also: roll damping moment) is given by the above formula. The spin damping coefficient depends on bullet geometry and the flow type (laminar or turbulent). Tuffsteel Home Page

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