Have had many Leupolds and felt they were good and the lifetime warranty was a plus. I had problem with one when clicked up 4" and clicked back to zero and it was still at almost 4". Sent in to Leupold and got it back with the test report all ok. Had another one that I bought new boosted. I was told Leupold will warranty them and they would warranty them also. On a very accurate heavy gun, when I cranked elevation up and back down to zero, it would move 3/4" right every time. I called the company that I bought it from and was told that was a common problem, easy to fix, but they were done with Leupold scopes and needed to send to Leupold. Called Leupold and they said they would not work on it because it had been boosted. I said oh, ok, thank you, 10 minutes later ordered a Nightforce and was happy ever since