This report records the essential data on which the bombing tables, BT-1100-A-3, are based. A short description of the bomb is given as well as the mechanical constants of the bombs used. The methods used in range bombing and the methods of obtaining essential data are described. Also given are the method used to determine the ballistic coefficients, as well as the methods used in constructing the bombing tabless. Graphs showing the results of range bombing and graps showing the fitted C : Y relations are included.