I have a Leupold Scope with the Eyepiece frozen to the Lock Ring , and I need to adjust the Reticle sharp for my eye . I have tried a dozen times to break it free by hand and that just won't work . The Lock Ring sticks up a small amount above the surrounding metal , and I think if I use a strip of rubber and some narrow pliers I could break it free .....but this would be tricky and would probably destroy the Lock Ring . Does anyone have any safer suggestions on how to loosen this set-up ? Heat or Cold maybe ..... and exactly how to apply same ? Any type of penetrating lube which might work ? TIA .