About 10 years ago, a friend of mine booked his first African Safari, and had a custom rifle made in 416 Remington. He topped it off with a Zeiss scope, and after 3 shots at the rifle range, the cross hair wires broke. He was given a new Zeiss to replace the broken one, mounted it and headed out to the range. 11 shots later, the cross hair wires on the new scope broke. He swore off Zeiss Scopes, and replaced his Zeiss with a Leupold 2 1/2 X 8, and it's not given him any trouble.I don't know what model Zeiss he had on the rifle, but I do know he wasn't at all happy.