Type 2 120-mm High-Explosive MortarType 97 150-mm High-Explosive Mortar
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 4 – Section 3
ARMY MORTARS
Type 96 - 150-mm High-Explosive Mortar
Weight complete round: 58.06 pounds.
Weight main charge: 12.9 pounds.
Explosive components:

Main charge: TNT.

Booster: Picric.

Propellant:

Nitrocellulose and graphite: 58.0 percent.

Nitroglycerine: 7.1 percent.

Dinitrotoluene: 25.7 percent.

Diphenylamine: 0.5 percent.

Potassium nitrate: 8.7 percent.

Over-all length (without fuze): 28.75 inches.
Length fin assembly: 7.81 inches.
Maximum diameter at bourrelet: 5.9 inches (150 mm).
Maximum diameter of tail fins: 5.87 inches.

Color: Black over all with a red tip, a yellow band below the bourrelet, and a white band before the tail-fin assembly.

Fuzing: Type 93 instantaneous short-delay mortar fuze.

Weapon in which used: Type 96 150-mm smooth-bore mortar.

Description: The construction of this shell is similar to that of the type 97 81-mm H.E. mortar shell.

Figure 312 – Type 96 150-mm High-Explosive Mortar.

Type 2 120-mm High-Explosive MortarType 97 150-mm High-Explosive Mortar