Like Eremicus, I haven't seen any of my Leupold's fail due to just recoil best I can tell. I have seen them shift zero from being bumped (probably slammed) from rough air line handling though. I realize this might not be considered a failure, but it doesn't leave me with a warm and fuzzy feeling as to why they shifted zero. Would be curious to see if Leupold's use of dual erector springs in their newer VX-3's would help that or not.
