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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 91 - 10-cm (105-mm) High-Explosive Long-Pointed Projectile |
| Weight of projectile, filled (without fuze): 15.7 kg. (34.5 pounds). |
| Weight of filling (white composition): 2.3 kg. (5.2 pounds). |
| Filling: |
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1. Cast TNT. |
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2. White composition of ammonium nitrate, cyclonite, and guanidine nitrate. |
| Diameter at copper bourrelet: 104.2 mm (4 1/8 inches). |
| Length over all (without fuze): 501.7 mm (19 3/4 inches). |
| Length protruding from case (without fuze): 423.9 (16 11/16 inches). |
| Width of rotating band: 22.2 mm (7/8 inch). |
| Width of copper bourrelet: 20.6 mm (13/16 inch). |
| Fuzing: |
| Weapons in which used: |
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Type 91 howitzer: Case, 9 1/2 inches. |
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Type 38 field gun: Case, 11 1/8 inches. |
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Type 14-year field gun: Case, 18 1/8 inches. |
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Type 92 field gun: Case, 29 inches. |
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Type 14-year A.A. gun (fixed ammunition): Case, 22 1/4 inches. |
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Remarks: This projectile has been recovered with either a copper or a machined bour-relet. |
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Figure 278 – Type 91 10-cm High-Explosive Long-Pointed Projectile. |
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