Bought 4 of these for Leupold 3-9X33 EFR's mounted on rimfires with Burris Signature rings.Both scopes are set at centre of adjustment using the Burris insert kits so have no concerns running out of adjustment while using these turrets. Easy to install but found upper half could not be tightened to eliminate "wobble".Fitted a 3/16X5/16X1/16 O ring to each spindle under lower half of turret to get rid of play and turrets are now firm and reasonably precise. Graduation marks match Leupold closely. These turrets are adequate for casual range shooting and can quickly be removed and replaced by Leupold covers for hunting situations.
Pros: Convenient
Cons: Expensive
This review was written in the old system and had content requirements that are different than reviews written today.