Originally Posted by niteglock
Only issue I've had with mine now has been if I rack the slide and don't pull it back hard it will jam and if I let it go lightly (being sneaky) it will not feed correctly and dent the casing. Other than that if I pull back hard and let it fly it chambers fine. Or if I use the slide stop to chamber a round it is fine. It is a fun little cannon at the range though. Had to put rubber grip on it. Hurts after a hundred rounds or so.
I had the same issue with mine when I first got it. As long as I locked the slide back and hit the slide release it would chamber fine. That was annoying the crap out of me so I took to YouTube to see if there was a solution and I found it. I'd post it here but I can't find that video now.
The solution is simple. You can rack the slide to chamber a round without having to rack it hard. Pull the slide back until you hear a click and you can release the slide slowly and it will chamber fine. Even though you think you are pulling the slide all the way back on an XD-S it has that 1/8" extra pull to get that "click". Not sure what it is and what causes it but trust me, it's there. Without that little click it will jam and not feed the round.
Try it out and let us know if it worked for you.