The .20 Tactical is a wildcat

Wildcat cartridge

A wildcat cartridge, or wildcat, is a custom cartridge for which ammunition and firearms are not mass produced. These cartridges are often created in order to optimize a certain performance characteristic of an existing commercial cartridge.Developing and using wildcat cartridges does not...

 centerfire rifle

Rifle

A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...

 cartridge

Cartridge (firearms)

A cartridge, also called a round, packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm. The primer is a small charge of impact-sensitive chemical that may be located at the center of the case head or at its rim . Electrically...

, based on the .223 Remington

.223 Remington

The .223 Remington is a sporting cartridge with almost the same external dimensions as the 5.56×45mm NATO military cartridge. The name is commonly pronounced either two-two-three or two-twenty-three. It is loaded with a diameter, jacketed bullet, with weights ranging from , though the most common...

 case, necked down to fire a .204" caliber bullet. The .20 Tactical was designed by Todd Kindler and predates the .204 Ruger

.204 Ruger

The .204 Ruger is a centerfire rifle cartridge developed by Hornady and Ruger. At the time of its introduction in 2004, the .204 Ruger was the highest velocity commercially produced ammunition, and the only cartridge produced commercially for bullets of .204 inch/5 mm caliber.-Characteristics:The...

 factory round. The case has approximately 3 grains less powder capacity than the popular .204 Ruger. Handloaders can get velocities with 32 and 40 grain projectiles that almost match the .204 Ruger. Furthermore the .20 Tactical is also able to achieve these velocities with less powder than the .204 Ruger by more efficiently utilising high energy propellants such as Alliant Reloader 7 and Winchester 748. Based on the .223 Remington, a wide selection of brass is available. Lapua

Lapua

Lapua is a town and municipality of Finland.It is located next to the Lapua River in the province of Western Finland and is part of the Southern Ostrobothnia region. The town has a population of and covers an area of ofwhich is water...

 produces high quality cases in .20 Tactical sold under the Dakota Arms brand.

See also

• .204 Ruger
  .204 Ruger
  The .204 Ruger is a centerfire rifle cartridge developed by Hornady and Ruger. At the time of its introduction in 2004, the .204 Ruger was the highest velocity commercially produced ammunition, and the only cartridge produced commercially for bullets of .204 inch/5 mm caliber.-Characteristics:The...
  
  
• .20 VarTarg
  .20 VarTarg
  The .20 VarTarg is a wildcat centerfire rifle cartridge, based on the .221 Remington Fireball case, necked down to fire a .204 bullet. The VarTarg is most popular with varmint hunters because it provides good range and uses relatively little powder, so the rifle barrel doesn't heat up quite as fast...
  
  
• .221 Fireball
• .20 PPC
• .20 BR
• Case Dimensions
• 5 mm caliber
  5 mm caliber
  This article lists firearm cartridges which have a bullet in the to caliber range.*Length refers to the cartridge case length.*OAL refers to the overall length of the cartridge.All measurements are in mm .-Rimfire cartridges:...
  
  
• List of rifle cartridges