My dealings with Leupold on warranty issues have been nothing short of first rate. My first scope was a second hand VX11 in 2-7 and served me well for years. I dropped the rifle while cleaning it and banged the scope. I sent it off and it was returned repaired on warranty. Some time later another issue cropped up so I sent it back again and received a new scope.
My son slipped while hunting and banged the back of the scope to the extent of a 45 degree angle. It was repaired on warranty.