Introduction. Conducting research on identification of handguns Shoot the bullets and shells to the most complex types of forensic ballistic examinations. Glare surface and cylindrical concave surface trace of the striker on the primer sleeve difficult enough for optical microscopic examination. Also relevant is the forensic ballistics problem of obtaining copies of tracks for storing and mailing expert divisions. Experiments al part (procedure). In forensic trasology already relatively long known silicone compounds , with which you can get volume casts a very high resolution. The paper presents experimental results on the preparation of bulk casts of portions of the surface of spent cartridges and the shot bullets on which there are traces of used firearms. Discussion of results. The possibility of identification studies using casts obtained.