.224 Boz

The .224 Boz cartridge was developed in the late 1990s, designed as a candidate replacement cartridge for adoption as the standardized NATO ("STANAG") Personal defense weapon PDW round, originally solicited to replace the longstanding NATO standard (STANAG) 9×19mm Parabellum. It was going to be the British entry, to be evaluated alongside the Belgian FN 5.7x28mm and the German HK 4.6×30mm armor-piercing cartridges. The solicitation would also seek to find, test and standardize a PDW cartridge capable of, at the minimum, defeating the Collaborative Research Into Small Arms Technology (CRISAT) body armour of the time.[1][2]

.224 Boz
TypeHandgun
Place of originUnited Kingdom
Production history
Designedlate 1990s
ManufacturerCivil Defence Supply (United Kingdom)
Specifications
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 in (13 cm)

Design

The .224 Boz began as a 10mm Auto case necked down to .223 in (5.7 mm). Original trials were successful, with this round firing a 50 gr (3.2 g) projectile chronographed at over 2,500 ft/s (760 m/s).[3] During development a version based upon the 9x19 Parabellum case was also evaluated, which carried the significant advantage of being able to be utilized in pre-existing NATO standard 9x19 Parabellum caliber firearms by means of a relatively cheap barrel and caliber swap.[4] The 22 TCM takes advantage of this same concept in its sub-variant, the 22 TCM 9R.

See also

References
  1. ".224 BOZ Ammunition and Weapons Programme". Civil Defense Supply. Archived from the original on 2005-04-04. Retrieved 10 October 2013.
  2. "NATO PDW Trials: The Forbidden Saga of "MP7 vs P90" [ Collab with Oxide ]". YouTube.
  3. Guns & Ammo, November 1998, p64
  4. ".224 BOZ Ammunition and Weapons Programme". Civil Defense Supply. Archived from the original on 2005-04-04. Retrieved 10 October 2013.
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