I have the chance to buy an older Leupold BR 24 and was wanting opinions on these scopes,it has the lock ring on the AO,this scope has been sent back to Leupold for a reticle change a few years ago I assume they checked it out then,it seems to be clear just from looking through it hand held.I wont be using it for competition,thought it would ne nice to use on one of my rimfire guns or one of my centerfire rifles for accuracy testing.I dont care for the markings on the AO but I usually set that by looking through the scope anyway.