8×22mm Nambu [SEP] service entry
8×22mm Nambu
The 8×22mm Nambu is a rimless, bottleneck handgun cartridge introduced in Japan in 1904. 
History.
It was used in the Type A and B Nambus, Type 14 Nambu and Type 94 pistols, Tokyo Arsenal Model 1927, Type II machine pistol, Hino Komuro M1908 Pistol and the Type 100 submachine gun. It uses 8.2 mm (.320") bullets. Power is relatively low, with military loads developing about 280 J (200 foot·pounds), comparable to the American .380 ACP and
– 7×20mm, 8×22mm)
- Nambu Type A (Empire of Japan – Semi-Automatic Pistol – 8×22mm)
- Nambu Type B (Empire of Japan – Semi-Automatic Pistol – 7×20mm)
- Nambu Type 14 (Empire of Japan – Semi-Automatic Pistol – 8×22mm)
- Nambu Type 66 (Japan – Submachine Gun – 9×19mm Parabellum)
- Navy Arms
- Revolvers
- Navy Arms Frontier Buntline Model (United States – Navy Arms/Colt's Manufacturing