>That's the one! You saw a clip from either StrikerS or ViVid, the
>third and fourth series respectively, and it's a toss up which one it
>might be - slightly more likely to be StrikerS though, I think. Small
>correction though, there's a...fifteen? twenty? year *time skip*
>between the second and third series, so it's not so much it ran that
>long, just that her story didn't end when the bad guys did.

Might have also been Force! which has adult Nanoha still at work, with even MORE gear and even BIGGER weapons (which is...suprisingly at this point, somehow even physically possible).

Of Force! and ViVid, I'm not sure what the actual chronology is. but they definitely both seem post-timeskip.