I have an old Bushnell Banner that came off a Ruger .243 I took on trade once. When I traded the .243 I kept the scope and have used it for an "extra" for years. In addition to being on the .243, I've had it on a 6.5x55, a 7mm Mag, a 375 H&H and a 450 Marlin. While I'm normally a Leupold man, I have to admit that the old Bushnell has never failed. Many times it goes along on a trip so if a scope is damaged or fails, we have a replacement handy.
They may not be top of the line or really fancy but they do seem to be fairly tough and rugged. Like the old Weavers, they are a pretty good scope for the money they sell for.