40mm grenade launcher carried by the fire team leader has a range of 150-350 meters.

• A. 40mm grenade launcher range 200-400 m
• B. 40mm grenade launcher range 150-350 m
• C. 60mm mortar range 600 m
• D. 20mm cannon

Answer: (B)

The range being tested is the intended effective engagement window for the handheld 40mm grenade launcher used by a fire team leader. This weapon is designed for close to mid-range support, where its grenades can be accurately delivered and detonate with reliable fragmentation, typically between about 150 and 350 meters. Staying within this band ensures the shooter can hit targets while maintaining control of dispersion and timing.

Choosing the range of 150–350 meters matches standard doctrine for this weapon system. While the grenade can be fired farther and its maximum range approaches around 400 meters, the practical, effective range for accurate, predictable fire is about 150–350 meters.

The other options refer to different systems or misstate the lower bound: a range like 200–400 meters shifts the minimum into a zone where the weapon is less tested for accuracy and effectiveness; a 60mm mortar operates far differently with a longer, crew-served indirect fire capability; and a 20mm cannon is a different caliber and role entirely.