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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 5 - Section 1 |
| NAVY PROJECTILES |
| 7.7-mm Aircraft Machine Gun Ammunition |
Ball |
A.P. |
Incendiary |
Tracer |
H.E |
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Over-all lenght |
3 1/32 inches |
3 5/64 inches |
3 3/64 inches |
3 3/64 inches |
3 inches. |
Length of case |
2 7/32 inches |
2 7/32 inches |
2 7/32 inches |
2 7/32 inches |
2 7/32 inches. |
Length of projectile |
1 9/32 inches |
1 13/32 inches |
1 13/32 inches |
1 13/32 inches |
1 21/64 inches. |
Weight of projectile |
173.6 grams |
133.2 grams |
130.4 grams |
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Type |
Projectile jacket |
Projectile core |
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Construction: |
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Ball |
CuNi |
Lead. |
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A.P. |
Brass |
Steel. |
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Tracer |
CuNi |
Lead. |
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Incendiary |
Brass |
W.P. and lead. |
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H.E. (blunt nose) |
Copper |
PETN and lead. |
| Weapons in which used: |
| Type 92 A.A.M.G. (Lewis design). |
| Type 92 flexible A.C.M.G. (Lewis design). |
| Type 97 fixed A.C.M.G. (Vickers design). |
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Type |
Primer color |
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Color and markings: |
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| Ball | Black. |
| A.P. | White. |
| Tracer | Red. |
| Incendiary | Green. |
| H.E. | Purple. |
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Remarks: This ammunition is used in Navy aircraft. There is no sequence of loading. |
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All the rounds are rimmed. They are interchangeable with British caliber 303. |
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The type 92 A.A.M.G. and A.C.M.G. uses adrum magazine, and the type 97 uses a link belt feed. |
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Figure 346 –7.7-mm Aircraft Machine Gun Ammunition. |
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