So far I haven't broken a NF or Bushnell Elite Tactical scope, but then again I haven't owned many of them and haven't put them on hard kickers yet.
I have used quite a few SWFA's, and they're great values but I've had two break. One was a fixed 6x on a 7 mag, the other was a 1-4 on an AR. Both were replaced quickly with no questions asked by SWFA.
On the cheaper end of the spectrum, I had an old Burris Fullfield 3-9 that took a lot of abuse. It didn't track great during sight ins but once zeroed it did hold zero very well.
Jordan's suggestion is a good one.
