Abstract: A new variable power rifle scope adjuster for allowing a variable power rifle scope to be adjusted with a single finger. The inventive device includes a clamping ring dimensioned for fitting around a power adjustment ring on a standard scope. A vertical segment is secured to and extends upwardly from the clamping ring. A horizontal segment extends outwardly from an upper end of the vertical segment. A finger loop is secured to a free end of the horizontal segment. The finger loop is dimensioned for receiving a finger therein for moving the vertical segment and the horizontal segment to facilitate movement of the clamping rod to adjust the power adjustment ring on the standard scope.