Home Forums Hunting & Shooting Hunting Optics Shim a scope?

I redid the stock of an old, odd, Savage bolt action 30-30 of a friend. I got it looking great and replaced the ancient scope that seemed to touch the barrel. With new scope and mounts it is hitting way too low. I have never shimmed a scope but plan to try this one. Any no-cost or very low cost advice? I assume I would shift the lower rear of the scope. Sound right and do I need to also shim the front upper??? Total novice on this.


As an aside this is an heirloom from is grandfather and there is no manual to be found even after calling Savage. They discontinued this rifle before 1940 if I recall. Thought I screwed the pooch after taking it apart and wondering where the hell this little spring and bearing came from.