槍口初速
The cartridge developed also had several variants including 7.75×40.5 mm, 7.75×39.5mm, and possibly a 7.62mm version as well, and had a total length of approximately 55 mm. (The actual calibre was apparently 7.9mm, with a bullet 8.05mm in diameter.) Muzzle velocity was about 700 m/s (2,280 feet per second). The boat-tailed bullet weighted 140 grains (9 grams).