14.5×114mmAPI Cartridge Type 56
Type 56, 58, 75,75-1 and 80, AA Machine Gun
| Caliber | 14.5 mm | 
| Length | 75~188(g) | 
| Bullet weight | 63.0~64.8(g) | 
| Average muzzle velocity (+20°C) | 3600 kgf/cm2 | 
| Chamber pressure (+20°C) | 832 m/sec | 
| Armor-piercing rate | 20 cm (LxW) | 
| Incendiary rate | Brass Cu 70 | 
| Operation temperature | -45“C~+50°C | 
| Storage temperature | 5°C~ 25›C | 
| Bullet Lead Jacketed with gilding metal | |
| Primer Non-corrosive Berdun type | 
47 rounds/iron box, 94 rounds/wooden case, 469x 342 x 151 (mm), 23 kg/wooden case