Fig. 5. White light optical profilometer analysis of the lateral side of two different bullets (98FS-1 and 98FS-2) shot by the same pistol (Beretta, model 98FS).
Tridimensional images of two corresponding areas are reported in (A) and (B); the profiles (98FS-1 dark line, 98FS-2 gray line) resulting from the average of 50 neighboring sections taken perpendicularly to the striae and corresponding to two different position in the images are reported and compared in (C) and (D).