My SR22 developed the same slide wear within the first 100 rounds. It's got about 1500 down the pipe so far and thankfully has been extremely reliable. every once in awhile I get a 2nd round FTF, but only with fed ammo. blazer, remmington BG and winchester have all fed flawlessly.
I'm thinking about contacting Ruger about the slide issue though.
a bit off topic but how does one contact them about a gun issue. Is it a simple as putting in a call and going from there?