I have kept my dogs out of this cage so far sinceI think Dan and the others have been giving you good advice. The only thing I could think of trying is taking your scope off and cleaning the mounts and rings real good to make sure there is no dirt in there making it set in off centered, had that happen on a .22 scope once. Put it back on and it was just fine. The last thing I could think of is take the scope off and put it back on nice and "snug". If you put it on and wrench on them mounts too hard you can "torque" it and make it be off. Them are the only two things I can think to add with all you have been given so far.