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.223 Winchester Super Short Magnum

.223 WSSM
.223 WSSM with 75 gr (4.9 g) Hornady AMax bullet
TypeRifle
Place of originUnited States
Production history
DesignerBrowning & Winchester
Designed2002
ManufacturerWinchester
Produced2003–present
Specifications
Parent case.300 WSM
Case typeRimless, bottleneck
Bullet diameter.224 in (5.7 mm)
Neck diameter.272 in (6.9 mm)
Shoulder diameter.544 in (13.8 mm)
Base diameter.555 in (14.1 mm)
Rim diameter.535 in (13.6 mm)
Rim thickness.054 in (1.4 mm)
Case length1.670 in (42.4 mm)
Overall length2.362 in (60.0 mm)
Rifling twist1-7 in (180 mm) to 1-9 in (230 mm)
Primer typeLarge rifle
Ballistic performance
Bullet mass/type Velocity Energy
40 gr (3 g) BT (boat-tailed) 4,352 ft/s (1,326 m/s) 1,683 ft⋅lbf (2,282 J)
60 gr (4 g) JSP 3,733 ft/s (1,138 m/s) 1,857 ft⋅lbf (2,518 J)
75 gr (5 g) BT (boat-tailed) 3,378 ft/s (1,030 m/s) 1,901 ft⋅lbf (2,577 J)
Test barrel length: 24 in (610 mm)
Source(s): Hodgdon [1]

The .223 WSSM (Winchester Super Short Magnum, 5.56×42mm) is a .224 caliber rifle cartridge created by Winchester and Browning based on a shortened version of the Winchester Short Magnum case.

History

The .223 WSSM was introduced in 2003 by the Browning Arms Company, Winchester Ammunition, and Winchester Repeating Arms Company. The .223 designation is a reference to the popular .223 Remington. It is currently claimed to be the fastest production .22 caliber round in the world with muzzle velocities as high as 4,600 feet per second (1,402 meters per second), but this is not completely true. The .220 Swift still holds the record as the fastest .22 caliber centerfire cartridge with a published velocity of 4,665 ft/s (1,422 m/s) using a 29-grain (1.9 g) projectile and 42 grains (2.7 g) of 3031 powder.[2][3][4][5]

Complaints

Even before the cartridge was commercially introduced, it was claimed[according to whom?] that it would be extremely hard on barrels and high wear would lead to short barrel life. Another criticism is that, although the round is suited for long range varmint hunting, it is not good for medium game any farther than 200 yards.[6]

The Winchester made Model 70 in .223 WSSM has not been revived in the new Browning-made Winchester Model 70s, but Browning has chosen to use chrome-lined barrels on all of its guns chambered for .223 WSSM and has introduced the .223 WSSM cartridge as a chambering in its A-bolt rifles. Browning rejects the charge that the .223 WSSM round is especially hard on barrels: "The 223 and 243 WSSM cartridges are said to 'burn up' barrels in as little as 300 rounds. Nothing could be further from the truth."[7]

Advantages

According to Browning, the .223 WSSM offers a 600 ft/s (180 m/s) gain with a 55 gr (3.6 g) bullet over the standard .223 Rem. It also offers a 440 ft/s (130 m/s) gain over the .22-250, a popular varmint round. This comes out to a 600 ft⋅lbf (810 J) gain over a standard .223 Rem, and a 350 ft⋅lbf (470 J) gain over the .22-250.[8]

See also

References

  1. ^ ".223 WSSM data at Hodgdon Online". Archived from the original on 2007-11-11. Retrieved 2007-07-09.
  2. ^ "223 Winchester Super Short Magnum History and General Information". gunnersden.com. Archived from the original on 2013-11-02. Retrieved 31 October 2013.
  3. ^ "World record 4700 fps 223 WSSM explodes watermelon better than". YouTube. Archived from the original on 2021-12-15. Retrieved 31 October 2013.
  4. ^ ".223 Winchester Super Short Magnum (WSSM)". ballisticstudies.com. Retrieved 31 October 2013.
  5. ^ ".223 Winchester Super Short Magnum Ballistics". gundata.org. Retrieved 31 October 2013.
  6. ^ ".223 Winchester Super Short Magnum". leeloadmaster.com. Archived from the original on 2 November 2013. Retrieved 31 October 2013.
  7. ^ "223 WSSM vs the 22-250 Rem. - Browning Article". Archived from the original on 2010-12-24. Retrieved 2010-08-05.
  8. ^ ".223 Rem vs. .223 WSSM". fieldandstream.com. Retrieved 31 October 2013.

External links

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