Don't let the movement scare you - OpticsPlanet Exclusive Elcan SpecterDR Dual Role 1-4x32mm Rifle Scope

This optic is great and remains true but beware this optic does move via the mount and scope. Per the manual " The mount is designed to with stand rough usage in operation. Anti backlash springs in the elevation and azimuth mechanisms permit flexibility, but always return to the sight to the zero position. A tension spring between the optical main body and the mount rail grabber removes vertical movement by applying tension to the two halves of the mount."
If you grab the your gun by the optic you will notice play/wiggle between the mount and optic but it returns to zero immediately. I do not know why it is deigned in this manner but it works and will get you very tight groups at medium to long distances any day. This optic is built like a tank, and cost just as much. Its worth the money. It has great glass and precise adjustments. Have fun and be safe on the range.

4 stars because the movement of the scope startled me at first for such an expensive optic.