I recently bought a 1976 SA 22 and bought the "Browning" scope mount and rings. There were no directions with the mount so I called Browning's tech support. The guy told me to use 18 in/lbs torque on the rear screw that touches the receiver. WRONG !!! I contacted Talley (on the side of the base) and the response is turn the screw in until it touches the receiver. I hope this helps someone before they ruin their scope mount. regards, Dave