Norma Verminxtreme .222 Remington 55gr (900 Rounds)NORMA VerminXtreme delivers massive shock effect when you need to take aggressive measures against natures most relentless intruders. The triple deuce was an instant success when Remington marketed it in their then new 722 bolt action rifle in 1950. Designed mainly by Mike Walker the case was an entirely new development and not based on any existing cartridge. In many respects it is a scaled down version of a . 30 06, and the base diameter of the case