20-mm Tracer Projectile25-mm Ammunition
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 5 - Section 1
NAVY PROJECTILES
20-mm Practice Projectile
Fuze: None.
Weight of projectile: 4.45 ounces.
Length of projectile: 3.23 inches.
Length of complete round: Mk I, 5.66 inches; Mk II, 6.84 inches.
Filling: None.
Color and markings, black over all.

Remarks: The projectile is unfuzed and has a blunt nose. It has an empty cavity which is closed at the base with a crimped steel plug. No modifications exist.

Figure 356 – 20-mm Practice Projectile.

20-mm Tracer Projectile25-mm Ammunition