Scope for a Webley Scott Carbine Stingray

howdy, I have an original Webley Scott Carbine Stingray that I got around 20 years ago. I bought a Swift 4-12X40 Scope for hunting purposes then. kinda always thought it was overkill for just squirrels and rabbits. anyway I don't hunt anymore these days so I was thinking to get a scope just for back yard plinking, probably only 10 - 15 yards max. what do ya'll think?
 
howdy, I have an original Webley Scott Carbine Stingray that I got around 20 years ago. I bought a Swift 4-12X40 Scope for hunting purposes then. kinda always thought it was overkill for just squirrels and rabbits. anyway I don't hunt anymore these days so I was thinking to get a scope just for back yard plinking, probably only 10 - 15 yards max. what do ya'll think?
Pic please...