125 mm practice High-Explosive with Tracer and self destruction. Is divided round with stabilizer and tracer. Shell is charged with screw filled TNT and is equipped with front self destructive fuze (AZ-90), bottom self-destructive fuze (DZ 75 AU) and two tracers. The self-destruction occurs within an interval of 3.8-5 seconds.
The cartridge is semi-combustible and consists of sealing steel cartridge case, combustible case and powder charge. It is initiated by priming screw with mechanical or electrical ignition. The round is intended for practice firing from tanks equipped with 125 mm cannon.