.20 Tactical

The .20 Tactical / 5.2x45mm is a wildcat centerfire rifle cartridge, based on the .223 Remington case, necked down to fire a 5.2 millimetres (0.204 in) caliber bullet. The .20 Tactical was designed by Todd Kindler and predates 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 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 using high energy propellants such as Alliant Reloader 7 and Winchester 748. Based on the .223 Remington, a wide selection of brass is available, and can also be formed from .223 casings by use of a forming die.

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Wikidata
cartridge, United States, 
.14-222, .17 Ackley Bee, .17 Hornet, .17 Mach IV, .17 Winchester Super Magnum, .17-223, .20 VarTarg, .218 Bee, .219 Donaldson Wasp, .219 Zipper, .22 BB, .22 BR Remington, .22 CHeetah, .22 Remington Automatic, .22 Remington Jet, .22 Spitfire, .22 Winchester Automatic, .22 Winchester Centerfire, .221 Remington Fireball, .222 Remington Magnum, .222 rimmed, .223 Remington, .224 Boz, .224 Weatherby Magnum, .224-32 FA, .225 Winchester, .240 Apex, .240 Weatherby Magnum, .243 Winchester Super Short Magnum, .244 H&H Magnum, .246 Purdey, .25 NAA, .25 Remington, .25 Stevens, .25 Stevens Short, .25 Winchester Super Short Magnum, .25-06 Remington, .25-21 Stevens, .25-25 Stevens, .25-35 Winchester, .256 Newton, .260 Remington, .264 Warrior Magnum, .270 British, .270 Weatherby Magnum, .270 Winchester Short Magnum, .275 H&H Magnum, .276 Enfield, .276 Pedersen, .280 British, .280 Remington, .284 Winchester, .30 Newton, .30 R Blaser, .30 RAR, .30 Remington AR, .300 Remington SA Ultra Mag, .300 Weatherby Magnum, .303 Savage, .303/22, .32 Remington, .333 Jeffery Flanged, .338 Norma Magnum, .338 Remington Ultra Magnum, .35 Remington, .35 Whelen, .357/44 Bain & Davis, .358 Winchester, .375 Dakota, .375 Weatherby Magnum, .376 Steyr, .400 H&H Magnum, .416 Barrett, .45-90 Sharps, .458 Express, .460 Weatherby Magnum, .476 Nitro Express, .50-140 Sharps, .500 A-Square, .500 Black Powder Express, .500 No. 2 Express, .500 S&W Special, .500 Wyoming Express, .577 Snider, .577/.500 Magnum Nitro Express, .600 Overkill, 30×29mm, 4.25mm Liliput, 6.5×47mm Lapua, 7.65×21mm Parabellum, 7.65×53mm Argentine, 9.3×62mm, 9.3×64mm Brenneke, cartridge, 40mm grenade, 

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Frameless

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