13mm Gyrojet
1960 · Robert Mainhardt and Arthur Biehl · 1 firearm in catalog
Also known as: 13x50mm Gyrojet, 13mm rocket, Gyrojet Mark I
Cartridge specifications
| Bullet Diameter | 13 mm (0.512") |
| Neck Diameter | 13 mm (0.512") |
| Base Diameter | 13 mm (0.512") |
| Case Length | 50 mm (1.969") |
| Overall Length | 50 mm (1.969") |
| Typical Bullet Weight | 11.7 g (181 gr) |
| Typical Muzzle Velocity | 380 m/s (1247 fps) |
| Typical Muzzle Energy | 845 J (623 ft·lbf) |
| Introduced | 1960 |
Firearms chambered in 13mm Gyrojet
- MBA Gyrojet — MB Associates (Mainhardt-Biehl Associates) · Pistol · 1965