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.20 Tactical Ammo

.20 Tactical Ammo Sale From Various Ammo Retailers

The .20 Tactical is a wildcat centerfire rifle cartridge, based on the .223 Remington case, necked down to fire a 5.2 millimeters (0.204 in) caliber bullet.

The .20 Tactical was designed by Todd Kindler and predated the .204 Ruger factory round. The case has approximately 0.2 grams (3 gr) less powder capacity than the popular .204 Ruger. Handloaders can get velocities with 2.1 and 2.6 grams (32 and 40 gr) projectiles that almost match the .204 Ruger.

Based on the .223 Remington, a wide selection of brass is available. Lapua produces high-quality cases.20 Tactical sold under the Dakota Arms brand.

About: .20 Tactical

  • Type: Rimfire
  • Place of origin: United States
  • Designer: Todd Kindler


  • Parent case: .223 Remington
  • Bullet diameter: .204 in (5.2 mm)
  • Neck diameter: .233 in (5.9 mm)
  • Shoulder diameter: .361 in (9.2 mm)
  • Base diameter: .376 in (9.6 mm)
  • Rim diameter: .378 in (9.6 mm)
  • Case length: 1.76 in (45 mm)
  • Overall length: 2.130 in (54.1 mm)
  • rimer type: Small rifle

Ballistic performance

Bullet mass/type Velocity Energy
32 gr (2 g) V-MAX 4,000 ft/s (1,200 m/s) 1,137 ft⋅lbf (1,542 J)
40 gr (3 g) V-MAX 3,750 ft/s (1,140 m/s) 1,249 ft⋅lbf (1,693 J)

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