The G-530 HEAC anti-concrete shell had a muzzle velocity of 457 m/s when fired with the "first" charge. At a range of one kilometer it had 358 m/s terminal velocity and was able to punch through up to 80 centimeters of reinforced concrete before detonating a TNT charge which increased the total penetration to 114 centimeters. The G-530 could not be fired with a "full" charge without putting the crew at risk of having the shell explode in the barrel. A special version of the shell, the G-530Sh, was developed to allow use with the full charge.