.22 CB

• Name —.22 Flobert CB • Origin — France • Type — Rifle • Designer — Louis-Nicolas Flobert • Design Date — 1888 • Production Date — 1888–present • Parent —.22 BB • Case Type — Rimmed, straight • Bullet —.222 • Neck —.225 • Base —.225 • Rim Dia —.271 • Rim Thick —.040 • Case Length —.284 • Length —.520 • Max Pressure — 7,000–10,000 psi (48.26–68.95 MPa) • Bw1 — 18 • Btype1 — Dynamit Nobel 6 mm Flobert Patronen • Vel1 — 720 • En1 — 21 • Bw2 — 18 • Btype2 — Sellier & Bellot.22 FLOBERT CB • Vel2 — 853 • En2 — 29 • Balsrc — Cartridges of the World, 11th Edition

Designed to be a cross between the.22 BB and.22 Short, and first cataloged in 1888, it "managed to combine about all the disadvantages...[of both] into one generally useless cartridge", being no more accurate than either while being noisier than the.22 BB Cap, and penetrating much deeper, requiring a backstop as strong as for the.22 Short, thereby negating the CB Cap's advantages for shooting indoors. American ammunition manufacturers dropped the.22 CB Cap in the 1940s. In Europe, the.22 BB Cap and.22 CB Cap are both called "6mm Flobert" and are considered the same cartridge. In Europe, the cartridge is still used in cheap rifles meant for short-range pest control. Although RWS in Germany, Eley-Kynoch in Britain, and Alcan stopped making the 6mm Flobert in the 1970s, it is still manufactured and sold in some European countries. For example, in the Czech Republic and Slovakia, Flobert guns fall within the same weapon category as air rifles, which are usually unaffected by gun laws. 6mm Flobert ammunition is also used in antique firearms chambered for the.22 Short and the.22 Long, as most modern ammunition has much higher pressure than the old black powder cartridges these guns were chambered for.

The original.22 CB Cap has the same tiny case as the.22 BB Cap and the two cartridges are interchangeable. There are now.22 rounds sold as.22 CB Short and.22 CB Long which come in the standard.22 Rimfire cartridge case sizes to allow the rounds to be used in standard magazine-fed firearms which would likely jam with the tiny BB or CB cases. The CCI.22 CB Short and.22 CB Long use the same 29-grain bullet as the regular.22 Short and.22 Long. The CCI CB rounds have muzzle velocities of 720 feet per second (ft/s) for an impact energy of 33 foot/pounds (ft-lb). The standard.22 Short and.22 Long fire the same bullet weight at 1,045 ft/s for 70 ft-lb. The CB rounds are relatively quiet for short range target practice, control of small pests, or use in older.22 guns that might not be safe with modern high pressure rounds. For trapping these CB Short and CB Long rounds in indoor target practice, a standard.22 bullet trap is needed. Other modern CB type rounds, such as the.22 Aguila Colibri and.22 Aguila Super Colibri, have bullets in the same weight range as the original CB Cap with velocities in the 300 ft/s to 500 ft/s range using the Long case. The CCI CB Short cartridge contains a half grain of a fine propellant.

• Case length: •.22 BB Cap: 0.284 in • 22 CB Cap: 0.284 in •.22 Short: 0.423 in •.22 Long: 0.613 in • Bullet weight: •.22 BB Cap: 18 gr •.22 CB Cap: 18 gr •.22 Short: 29 gr •.22 Long: 29 gr • Muzzle velocity: •.22 BB Cap: 780 ft/s •.22 CB Cap: 953 ft/s •.22 Short: 900 ft/s •.22 Long: 1,060 ft/s