Supriya Ghosh (Editor)

.22 BB

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Covid-19
Type  target
Designer  Flobert
Parent case  tapered percussion cap
Place of origin  France
Designed  1845
.22 BB
Variants  .22 BB Cap with Container

.22 BB Cap (Bulleted Breech Cap) is a variety of .22 caliber rimfire ammunition. .22 BB cap and .22 CB refer to cartridges that are low velocity and project reduced noise.

Contents

Description

These rimfires closely resemble a .22 caliber air rifle in power and are often used for indoor shooting and close range pest control. Developed for indoor shooting galleries with special "gallery guns", the .22 BB Cap was the first rimfire cartridge, dating back to 1845. It has no separate propellant charge, relying on the impulse created by the primer alone to fire a round lead ball. This results in a low muzzle velocity of around 700 ft/s (210 m/s) or less. More common is the .22 CB ammunition, which fires a slightly heavier conical bullet and is available in a variety of cartridge lengths.

Specifications

  • Length:
  • Case: 0.284 in (7.2 mm)
  • Overall: .343 in (8.7 mm)
  • Bullet weight: 18 gr (1.17 g)
  • References

    .22 BB Wikipedia


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