Ammunition recovered for the Type 97 thus far is usually the Type 00 (1940) HE shell. This shell is long and weighs , of which is the weight of the TNT filler. The fuze is of the instantaneous type, which can be set for delay action, however, by the insertion of a delay pellet in the fuze nose prior to firing. The shell could be fired in the US 81-mm mortar M1, but the range was about 10 per cent shorter than achieved with the US M43 and M43A shells. The 81mm mortar was also used to launch an unusual AA Mine Discharger shell.
