The Nambu pistol uses a low pressure 8 mm cartridge, which is considerably less powerful than comparable Western rounds like the .45 ACP, the 7.62x25mm Tokarev, the .455 Webley, and the 9x19mm Parabellum.
La Nambu disparaba un débil cartucho de 8 mm, que era considerablemenre menos potente que los cartuchos occidentales como el .45 ACP, el 7,62 x 25 Tokarev, el .445 Webley y el 9 x 19.