Ho-5 20-mm AmmunitionType 4 20-mm H.E.T. (Ma 202) Projectile
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 4 – Section 1
ARMY PROJECTILES
Type 2 and Type Modified - 20-mm H.E.I. Projectile
Over-all length: 5 3/4 inches.
Length of projectile: 2 9/16 inches (fuzed).
Weight of projectile: 77.4 grains (fuzed).
Weight of filling:
Cyclonite, type 2 modified: 3.4 grams.
Cyclonite, type 2: 0.4 grams.
Incendiary composition: 3.7 grams.
Filling: Cyclonite and incendiary composition.
Fuzing:
Type 2: Type 2 Small Instantaneous or type 2 small instantaneous modified fuze.
Type 2 Modified: Type 4 super-detonating fuze.
Color and markings:

The type 2 projectile is painted black over all and in some cases has a yellow band around body.

The type 2 modified projectile is painted silver-gray over all.

Remarks: The difference between the type 2 and the type 2 modified is in the fuze. The type 2 projectile uses a fuze that has an external gaine and thus has less explosive filling than the type 2 modified projectile which uses a fuze with the gaine built into the fuze body.

Figure 218 – Type 2 and Type 2 Modified 20-mm
High-Explosive Incendiary Projectile.

Ho-5 20-mm AmmunitionType 4 20-mm H.E.T. (Ma 202) Projectile