This is a data book designed specifically for Service Rifle shooters. Your data book provides a wealth of information when trying to get your groups tightly centered. Slow fire and Rapid fire sections are color coded which enables you to quickly re-orient during the different stages of highpower shooting. You can easily record every shot. In this data book you can record weather conditions, temperature, elevation, windage, light at start and finish, iris opening, filters, glasses, ammunition, and a whole lot more. Windage tables in the front of the book for quick reference.
Sinclair, Issue:4A, Page:225
Sinclair, Issue:4A, Page:259