25-mm High-Explosive Incendiary Projectile25-mm High-Explosive Tracer (Self-Destroying) Projectile
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 5 - Section 1
NAVY PROJECTILES
25-mm High-Explosive Tracer Projectile
Fuzing: Model 1 or Model 4.
Weight of projectile (approximately) filled (without fuze): 4.16 ounces.
Length of projectile (without fuze): 3.43 inches.
Length of assembled round: 8.24 inches.
Weight of projectile filled (including tracer): 0.72 ounce.
Filling: H.E.T.
Standard: Three pellets of TNT and aluminum
Alternates: 1. Three pellets of TNT. 2. Cast or pressed tetryl.
Color and markings: Orange or red over all.

Remarks: The only discernible difference between the orange and red rounds is a slight disagreement in weight.

Figure 360 – 25-mm High-Explosive Tracer Projectile.

25-mm High-Explosive Incendiary Projectile25-mm High-Explosive Tracer (Self-Destroying) Projectile