MOUNTING INSTRUCTIONS FOR USE ON .22 RIMFIRE RIFLES WITH FACTORY GROOVED RECEIVERS (3/8”) ONLY. 1. Assemble saddle, clamp, clamp screw (Fig. 1). 2. Position loosely assembled saddles in receiver grooves. Tighten clamp screw securely. 3. Place scope on saddles. Place ring caps over the scope tube and line up holes with holes in saddles.