the innovative combination of main armament and ammunition technologies
105 mm HE M1
The projectile is a hollow high-tensile steel forging with a boat-tailed base and a welded base cover, a streamlined ogive and a single gilding-metal driving band.
The projectile may have either a normal cavity or a deep cavity, formed or drilled into the explosive filling beneath the fuze well to accept whatever fuze is to be employed.
Used against personnel and material, producing fragmentation effects and shock wave.