Ho-301, it is:)
Ki-44, it is:)
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The image shows the compleat round, note below how the propellent is contained in the base of the shell, from what I understand these were Extreamly hard to hit with, one neaded be extreamly colose to the target to acheave a hit, one source quotes 100 yards or less to be considered best for a reasionable chance.

Above scaned from TM-1985-5.
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WTFG GRUNHERZ:)