.224 Boz

The .224 Boz cartridge was developed in the late 1990s with the purpose of defeating body armour.[1]

.224 Boz
Place of originUnited Kingdom
Production history
ManufacturerCivil Defence Supply - UK
Parent case9×19mm Parabellum (originally 10mm Auto)
Ballistic performance
Bullet mass/type Velocity Energy
45 gr (3 g) 2,400 ft/s (730 m/s) 575.44 ft⋅lbf (780.19 J)
50 gr (3 g) 2,500 ft/s (760 m/s) 693.77 ft⋅lbf (940.63 J)
Test barrel length: 5"


The .224 Boz began as a 10mm Auto case necked down to .223. Original trials were successful, with this round firing a 50 gr projectile chronographed at over 2,500 ft/s (760 m/s).[2]

See also


  1. ".224 BOZ Ammunition and Weapons Programme". Civil Defense Supply. Archived from the original on 2005-04-04. Retrieved 10 October 2013.
  2. Guns & Ammo, November 1998, p64
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