Don't wait. Replace the extractor now. It is a definite improvement on a 10/22 and doesn't cost much.
Mine was finicky until I did. Now, it eats anything. But I also now only use Federal Gold Medal Match 711B.
Interesting thing though. There are two versions of this ammo. One has a flat primer base, the other a dimpled base. The stuff that works is the dimpled base version. The flat base sucks.
One works. The flat primer has a 10% (not a typo) misfire rate in my 10/22, Mark II, and a friends 10/22. It isn't lack of firing pin strike as the ones that misfire have a clear pin strike dent.
Since I got stuck with about 3000 rounds of this stuff, I should try it in the S&W 41, Remington Speedmaster and dads old Stevens. If none of them like it, maybe I'll use it as a door stop.