|The 20 Tactical began as a wildcat cartridge, developed by Todd A. Kinder, starting in the spring of 2000. It was based on the
.223 Remington (5.56x45mm) NATO cartridge, necked down to .22" caliber (.223" Diameter) to 20 caliber (.195" Diameter),
with a steeper 30" degree shoulder and longer neck.
At first it was called the "Tactical 20" but when Dakota standard the caliber, they called it the "20 Tactical ".
Soon after Dakota had brass made to produce the cartridges and rifle, they dropped the idea due to the 204 Ruger introduction.
Making this caliber a rare and hard to find item.NOW OBSOLETE for 15 years or so and not coming back.