They are, but I’ve been scoped with the rubber ones and it’s no picnic either, more of a bash than a cut, but you know something happened.Closest I’ve gotten was my tikka 300wm super light. It would knock my hat off EVERY single time. Those old scopes all had metal around the eyepiece. The new ones with the rubber are probably that way because of guys like @robby denning going to the ER.