I personally have experience with three different brands of scope two of which are scout scopes, a leupold 2.5 scope, a burris 2 3/4 power now not made, and an older redfield 2-7 power pistol scope.
The burris was sent to the factory for repair,i am the second owner after less than 100 rounds of recoil from my tanker 308 for loose crosshairs.
The redfield another out of date scope lasted about the same.
However the leupold has lasted at least 400 rounds and counting.
Absolutely no problems.