The C-512 subprojectile consists of a tungsten alloy core helb by a 3-piece aluminium sabot. It uses the M148F cartridge case, which is filled with 5,7 kg of B19T single-base 19-perforation cylindrical pellets.
These yield a chamber pressure of no more than 345 MPa and peroration of the NATO triple target at 4,550 meters, and a 120 mm target at 70 at 3,500 meters.