What is the minimum safe firing range for a high explosive round during combat with the M203 grenade launcher?

The minimum safe firing range for a high explosive round from the M203 grenade launcher is indeed 31 meters. This distance is critical to ensure the safety of the operator and nearby personnel from the risk of injury due to the blast effect and fragmentation associated with the explosive round. Firing closer than this range increases the potential for harm from the explosion, as the round may not have sufficiently cleared the area of the shooter and any friendly forces.

This safety standard is established based on testing and experience in varying combat scenarios, cementing the understanding that maintaining this minimum distance is vital for operational safety. Understanding these specifications is crucial for Marines to effectively utilize the M203 while mitigating risks during combat situations.