.55 Caliber Ball

2 firearms in catalog

Also known as: 28 bore, .550 round ball, 13.97mm ball

Cartridge specifications

Bullet Diameter13.97 mm (0.550")
Typical Bullet Weight15.5 g (239 gr)
Typical Muzzle Velocity350 m/s (1148 fps)
Typical Muzzle Energy950 J (701 ft·lbf)

Firearms chambered in .55 Caliber Ball