Method for determining the probability of hitting a target with a shot, and for displaying the determined probability in an aiming device

According to the invention, a hitting area (6, fig.2) of a target (4, fig.2) is determined when aiming at the target. The invention comprises the further steps: S1 determining at least a first factor influencing the trajectory of a shot, e.g. bullet speed or target movement; S2 calculating at least a first probability that the shot will hit the hitting area of the target, taking account of the first factor; S3 determining a first graphical representation of the first probability in the form of a first area (AA, figs.4&5); S4 wherein the first area may then form a total graphical area if the first factor is the only factor to be taken into account; S5 determining the ratio of the hitting area (4, fig.2) to the total area, S6 using the ratio to calculate the probability that the shot will hit the hitting area of the target; S7 displaying the probability in the aiming device. The inventors have recognised that factors influencing the probability of hitting a target can be represented by areas.