I sent my old (25years) Leupold 6.5x20 in last year to have turrets installed, when it came back they had replaced the objective lens, as it was defective. It was news to me, I never had any problem with it. I have a bunch of Leupolds, and will remain loyal to them. My brother has a Burris, ( can't recall the model) on a Savage 99, 250-3000 that you can't sight in because it runs out of adjustment. It worked fine on this rifle for many years. He sent it in for repair and they told him the scope is fine, their must be a ring or base issue. I installed it and could not get it sighted in, it also looks like it's full of water compared to my Vari x 111's. Their full of chit.