Results of investigations on the susceptibility of rape seeds to macrodamage caused by the dynamic contact between seed and metal are presented in this paper. The damage is understood as a disturbance of the continuity of seed tissues as a result of the impact of extremal mechanical factors. The investigations were carried out with spring rape varieties taking into consideration the size of seeds, point and energy of impact. The investigations show that varietal features significantly differentiate the resistance of seeds to damage. It was also found that the point of impact in seed has a significant effect on its resistance to damage.