I have a 50' indoor range in the attic of my garage and shop. Works pretty well.

I like A/O adjustable scopes to get the right parallax for close in. Then, I can stretch'em out and check'em out.

I bought this scope from JB, works well on a tricked out 10-22 with Jard trigger, Volquartsen barrel.

DF

[Linked Image from i.imgur.com]