Which PG-7 variant has a warhead that penetrates approximately 400mm of RHA?

The PG-7S variant is known for its ability to penetrate approximately 400mm of rolled homogeneous armor (RHA). This characteristic makes it particularly effective against armored vehicles, showcasing the design focus on maximizing penetration capabilities. The warhead formulation and construction of the PG-7S are tailored to ensure optimal performance against contemporary armor at the time of its development, which is pivotal in real-world combat scenarios where armor effectiveness is critical.

The other variants do have their specific features and applications; for instance, the PG-7M provides a significant penetration capability but does not reach the levels offered by the PG-7S. Similarly, the PG-7VL and PG-7VR variants are equipped with different types of warhead configurations that serve other purposes, such as enhanced explosive effects or special tactical uses. Thus, while they may possess their strengths, their penetration effectiveness does not match that of the PG-7S in the context of defeating heavily armored targets.