Since you have a little time, why not remove and inspect your extractor. Things to look for would include chips or any peening of the front end of the extractor hook. The inside of the extractor hook should be free of any chips, or rough areas, machine marks, etc. You could also check the extractor tension. If you aren't familiar with how to do that there are many videos out there. It doesn't hurt to clean out the extractor tunnel in the slide, either. Pipe cleaners, Q-Tips, even a .22 bore brush can be used for that.

Good luck with it!

My Kimber T2 was experiencing frequent failure to feed when it was brand new. Tried a few different bullet styles of factory ammo. My Kimber is a bit fussy over ammo. I too was experiencing the occasional  1st round "failure to go into full battery". I believe it's from having elevated mag spring pressure on the full mag which causes the slide to loose some energy and not fully close. If I load only 7 rounds I never observe a battery issue. I ended up using some 600 grit sandpaper and some light oil and did some light polishing work on the slide contact areas and the feed ramp. I also polished the inside of the feed lips on my mags. I also keep my Kimber very clean and lubed with Mobil 1 oil. This has made a big difference in my Kimbers feeding reliability. It's taken some time but my mag springs seem to be softening up a bit. Ive got about 700 rounds through my Kimber and it's running excellent . I'm running handloads , RMR 180 RNFP's  13.2 gr of AA9 and i'm at 1210 fps. Excellent cycling, and a very consistent , well grouping load.

Well just lost my whole update I guess. Shot the Kimber today and all went fine. The load was 165g v-chrown with 10g Power Pistol
.Boy was it stout!!!! The most power I used in years but fun and OK I think.It was Alliant max recipe for this bullet so I deemed it safe. but work up as the Kimber is a heavy steel gun. My range is under water so shooting was in ankle deep water. Nice round but I will down load it for the 165g gold dots.  Craig

Was looking for something to reload and came across 50 remaining Golden Sabor so I loaded those. I did find something I had done wrong on the first fifty. I had the COL at 128.2 on most which I think gave me problems on the feed issue. If you remember from earlier in the post I was shooting 3 different rounds when I had problems I think this was the main issue and I fixed the 40 or so I had left over from the first go around.I am loading these at 1.25 now. should be perfect but I will report back.  Craig

Well one more thing I did measure the other two loads I shot when I had the feed issue and "YUP"you guest it right they were long also. Every thing is now fixed. Boy what a struggle.   Craig

Well OK shot the Kimber today with the Springfdield and Sig Sauer. The Kimber shot the worst of the three but I think I am on the problem with suspect reloads. The other two shot so good It was boring after a few rounds. I measured the 10mm when I got home and some are a little fat all were the correct length. I think I need to resize the Starline when I have new never fired brass for 10mm. Hey the big news is I found a brass catcher that binds to your wrist and it will be here in a couple days. Anyway you can't shoot a lot when there is no hope of getting the brass. Boy finding the Springfield in the safe made my month as I love shooting it although I am better with the Sig. Craig