I agree, it is probably just a bad scope. I would contact Leupold. Every scope manufacturer can have a "dud". I had one in a NightForce. They took care of it, as will Leupold. I hate to hear of your troubles though. I know how frustrating it can be.
" The strongest reason for the people to retain the right to
keep and bear arms is, as a last resort, to protect
themselves against tyranny in Government...." - Thomas Jefferson