.22 CB

Cartridge Data Published On: December 20, 2014 at 11:36 pm by Bullet-Blog and last updated on February 12, 2015 at 11:24 am


.22 CB Cap, 6mm Flobert, .22 Conical Ball Cap


The .22 CB (AKA: .22 CB Cap, 6mm Flobert, .22 Conical Ball Cap) is a Rimfire cartridge with a Bullet Diameter of 0.222 in” (5.64mm) that is primarily used in Pistols. The .22 CB originated in France in 1888. The .22 CB also has a case length of 0.42 in” (10.67mm) and an overall length of 0.52 in” (13.21mm).


The .22 CB pistol cartridge, closely related to the lesser known .22 BB pistol cartridge, is a low power, low energy cartridge that like its counterpart utilizes the primer only as the propellant for the projectile. The differentiation between the 2 cartridges is that one uses a Bulleted Breach Cap and the other a Conical Ball Cap (hence the designations BB and CB), resulting in a slightly heavier projectile in the .22 CB with moderately improved muzzle energy. Despite the modest improvement over the .22 BB, the .22 CB pistol cartridge is still only comparable to a low power pellet gun, often with much lower velocities.

Associated Firearms

Marlin 39A Lever Action, Henry Mini Youth, Savage Rascal Series, Crickett Single-Shot

Cartridge Details

  • Year:
  • Origin:
  • Cartridge Type:
  • Application:
  • Bullet Diameter:
  • Neck Diameter:
  • Shoulder Diameter:
  • Base Diameter:
  • Rim Diameter:
  • Rim Thickness:
  • Case Length:
  • Overall Length:
  • Primer:
  • 1888
  • France
  • Rimmed, Straight
  • Pistols
  • 0.222 in” (5.64mm)
  • 0.225 in” (5.72mm)
  • N/A
  • 0.225 in” (5.72mm)
  • 0.271 in” (6.88mm)
  • 0.04 in” (1.02mm)
  • 0.42 in” (10.67mm)
  • 0.52 in” (13.21mm)
  • Rimfire (Rimfire)

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