12-cm (120-mm) (4.7-Inch) Complete Round (Semifixed)12-cm (120-mm) (4.7-Inch) High-Explosive (Ordinary Mk 3 Mod 1)
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 5 - Section 1
NAVY PROJECTILES
12-cm (120-mm) (4.7-Inch) High-Explosive (Ordinary Mk 3)
Weight of filled projectile (without fuze): 44.75 pounds.
Weight of projectile (empty): 41.14 pounds.

Weight stamped on rotating band (sample): 18.520 kg. (varies with individual projecti-les).

Length of projectile (wihtout fuze): 15.95 inches.
Diameter at bourrelet: 4.6 inches (119.0 mm).
Distance from base to rotating band: 0.78 inch.
Width of rotating band: 1.95 inches.
Radius of ogive: 4 cal.
Filling: Cast picric acid (shimose): 3.61 pounds.

The charge consists of two blocks of explosive cast and sealed in a waxed paper contai-ner, encased in a heavy cotton-flannel bag and sealed in the projectile with paraffin.

Fuzing: Type 5-year point detonating fuze.
Weapon in which used:
British type 12-cm/40 gun (low angle).
Type 3-year 12-cm/45 gun (low angle).
Type 11-year 12-cm/45 gun (low angle).

Figure 385 – 12-cm (Ordinary Mk 3) High-Explosive.

12-cm (120-mm) (4.7-Inch) Complete Round (Semifixed)12-cm (120-mm) (4.7-Inch) High-Explosive (Ordinary Mk 3 Mod 1)