loosely assemble them (both) around the scope with all screws, tilt into position ensuring that the recoil lug stays in place, tighten the bottom screws just tight enough that the scope is held properly, rotate for cross hair alignment, remove one bottom screw at a time, apply blue loctite and incremently torque up to 25 in lbs (per pair), recheck scope alignment, adjust if needed, tighten one rings worth of top screws with loctite to 25 in-lbs, confirm alignment, repeat for the other set. A bit of a three handed job at first, and easier once you have done it.
I know it's old thread , but I wanted to throw a +1 for these, as the best rings for the money I've seen. Not too bad mounting, but just a note: see the online chart for measurements which are correct. The label on the packaging is not helpful. Low rings say applicable for 20-32mm objective, but my 40 fits with plenty of clearance for the covers. Top of base to bottom of scope body= 0.25".
they are built to withstand abuse after breaking 3 sets of rings on a 6.5 lb 9.3x62 shooting 286s i tried these and they did not break or malfunction and yes it was like being in a car wreck every time you pulled the trigger