bolt action japanese type 4 ho ro self propelled gunInspired by German self propelled guns the Type 4 Ho Ro assault gun was based on a reinforced Type 97 Chi Ha tank chassis. The Type 4 Ho Ro mounted the Type 38 150mm howitzer. Surrounding the front of the howitzer was 25mm of armour plating the open rear leaving the crew susceptible to close combat and shrapnel. The 150mm gun predominantly fired Type 88 APHE (armour piercing high explosive) rounds although it could also fire HEAT (high explosive anti