What are some signs a scope has been damaged by a Springer?

"mcdonama"This came up in another thread so I started a new thread just for this question. Specifically what happens when a scope "breaks" as a result of shock from a spring piston air rifle?

For those who may have experienced a scope that was damaged by a springer, what happens to the scope? Specifically how is it damaged? How does the scope's performance change?

Thanks!

Click to expand...

Multiple issues crop up. The reticle goes haywire. Doesn't hold zero. The lens shift internally. The windage and vertical adjustment knobs work but give inaccurate results. It is extremely important to only use springer rated scopes on these rifles. Sometimes the scope works on some shots and then stops working. People end up cleaning barrels, checking their pellets, wondering what went wrong etc while the scope was the real culprit.