With my brand new 5-inch I was using the slide release to drop the slide and chamber the first round of a new mag. The first 5 times the round failed to fully go into battery. The slide stopped about a half inch short. Then it quit doing that and operated flawlessly. Some of the guys suggested pulling the slide back and letting it go instead of using the slide release - at least through break-in. One guy here said he never uses the slide release to chamber a round. I'm going to try the slingshot way for a bit and see if the gun loosens up. But as I said....it quit doing that on its own anyway(on the first range trip). I have 100 rounds through it now. I expect the gun to fully chamber a round whether I rack the slide or use the slide release after putting another mag in. So I will return to that later and see how it does. I haven't even had to shout expletives so far, so I'm not ready to send her back to the factory yet.Visited the range this morning with my Super Carry & also my P238. Kimber is still having some issues with the slide not moving fully forward when chambering the first round off a full mag. The Wilson Combat mag seems to have the most trouble. Overall there were 10 FTF & 2 FTE (both stovepipes) with 100 rounds fired.
Only 1 FTF was not related to chambering the first round.
Including today, I have 450 rounds through it now.
Following advice of several others, I keep both mags fully loaded between range trips (loaded them a couple days ago).
Seems likely I'll be calling Kimber soon....