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223 WSSM Ammo

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The .223 WSSM was introduced in 2003 by the Browning Arms Company, Winchester Ammunition, and Winchester Repeating Arms Company. The .223 WSSM designation is a reference to the popular .223 Remington.

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.


  • Parent case: .300 WSM
  • 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 length: 1.670 in (42.4 mm)
  • Overall length: 2.36 in (60 mm)
  • Rifling twist: 1-7" to 1-9"

Latest products for 223 wssm

  • Ammo To Go 40rds - .223 Winchester USA Value Pack 45gr. JHP Ammo for $39.95
  • Lowest Ammo Winchester 223 Super-X X223R 55 gr PSP 20 Rounds for $22.49
  • Palmetto State Armory Winchester 223 69gr Match HPBT Ammunition 20rds - S223M2 for $24.99







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