The RPG-28 grenade is designed in such a way that the first part of it undermines the dynamic protection of the tank, and the second breaks through the armor, hitting the crew or important parts of the vehicle.
There is also a reactive multi-purpose grenade RMG, caliber 105 mm. Its combat unit is also a double action and is intended for the destruction of fortified objects. First, the cumulative projectile pierces the wall, and then the thermobaric grenade "widens" the breach.
The RShG-1 rocket assault grenade works in a similar way. Already from the name it is clear that its main purpose is the fight against light-armored equipment and manpower of the enemy.