What is the caliber of the RPG-7?

The caliber of the RPG-7 is 40mm. This designation refers to the diameter of the grenades it fires, specifically the rocket-propelled grenades designed for direct fire against armored targets. The RPG-7 is well-known for its versatility and effectiveness in various combat scenarios, and its 40mm caliber makes it a standard for many infantry units around the world. This caliber allows for a relatively lightweight and portable weapon system while still delivering a potent payload capable of penetrating armored vehicles and fortifications. The choice of 40mm is significant because it balances firepower and ease of use, making the RPG-7 a widely adopted choice in asymmetrical warfare.