Recently picked up a Bushnell Legend 5-15 X 40mm scope. Centered the reticle and mounted it. When boresighting, I noticed the windage dial became very difficult to turn. Didn't want to torque it too much and break it, but something was definitely wrong. Sent it to Bushnell's repair center in Lenexa, KS (along with a copy of the receipt and a $10 check for return shipping) and 2-3 weeks later they sent me a new scope.
Don't know if others have had bad experiences with Bushnell, but I got no complaints.