12 Cooper

  • THE .12 Cooper IS ALSO KNOWN AS:

  • .12 Cooper CCM, .12 Eichelberger CCM, .12-22 Cooper CCM, .12-22 Eichelberger CCM


    The .12 Cooper (AKA: .12 Cooper CCM, .12 Eichelberger CCM, .12-22 Cooper CCM, .12-22 Eichelberger CCM) is a Center Fire cartridge with a Bullet Diameter of 0.123 in” (3.12mm) that is primarily used in Rifles. The .12 Cooper originated in The United States in (UNKNOWN DATE). The .12 Cooper also has a case length of 1.106 in” (28.09mm) and an overall length of (UNKNOWN).

    Additional Cartridge Designations: Wildcat Cartridge.

  • The .12 Cooper Firearm Cartridge Originated in The United States

Cartridge Details

  • Year Introduced: 1996
  • Country of Origin: The United States
  • Case Type: Rimmed, Bottleneck
  • Primary Application: Rifles
  • Bullet Diameter: 0.123 in” (3.12mm)
  • Neck Diameter: 0.145 in” (3.68mm)
  • Shoulder Diameter: 0.247 in” (6.27mm)
  • Base Diameter: 0.249 in” (6.32mm)
  • Rim Diameter: 0.308 in” (7.82mm)
  • Rim Thickness: 0.05 in” (1.27mm)
  • Case Length: 1.106 in” (28.09mm)
  • Overall Length:
  • Case Capacity:
  • Primer: Center Fire (Small Pistol)
  • Rifling Twist: 1:5.5 in (140mm)
  • Max Pressure:
  • CIP Pressure:
  • CIP Proof Test:
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Cartridge Data Published On: January 19, 2015 at 5:23 pm by Bullet-Blog and last updated on February 1, 2015 at 2:22 am