With a verified range of more than 40 km from a modern L52 gun system, the 155 mm Insensitive Munition High Explosive Extended Range, or 155 mm IM HE-ER offers low round-to-round dispersion, which combined with enhanced blast and fragmentation effects optimizes its impact on semi-hard targets at long firing ranges. The round is designed to defeat light armor and soft targets, and for increased flexibility incorporates an interchangeable base bleed and hollow base.