20-mm Armor-Piercing Tracer ProjectileType 2 and Type 2 Modified 20-mm H.E.I. Projectile
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 4 – Section 1
ARMY PROJECTILES
Ho-5 - 20-mm Ammunition

The latest Army 20-mm gun developed is the Ho-5 aircraft gun which is excellent design and represent a considerable improvement over previous Army 20-mm aircraft machine guns.

Case:
Length: 3 11/16 inches.
Diameter of base: 31/32 inches.
Material: Brass.
Weight (empty): 113.5 grams.
The case is of the rimless type and has a slight taper toward the neck.

Propellant: The propellant is 21.4 grams of graphited smokeless powder in fine cylindrical grains.

Figure 217 – Ho-5 20-mm Ammunition.

20-mm Armor-Piercing Tracer ProjectileType 2 and Type 2 Modified 20-mm H.E.I. Projectile