Owned:
Zeiss - No Failures
Minox - Failed - elevation adjustment quit working.
Leupold - Failed - chasing zero, tapping on the tube
Meopta - No Failure
Swarovski - No failure
Bushnell (LRHS) - Failure - bad out of box, would not adjust.
Nightforce - No failure
SWFA - No Failure
Gravity is not my friend. I try to be careful, but all of them have probably been dropped at one time or another.
Bulletproof to date have been SWFA and Nightforce. - Really, the only two scopes I dial with.
I did beat the piss out of my Swarovski this year. A drop right on the elevation turret from standing, getting thrown in the back of the truck under gear and washboarded down the road, sub zero exposure overnight, etc. and it has help up so far with zero retention and being dialed down and back to zero.
@SDHNTR I know that is not your experience.