I took the newish Kahr CW380 out today and put another 70 thru it. My first 120 were problematic, it wouldn't feed and required several bumps to the slide to complete the chambering process. I figured a stiff new firearm and milquetoast domestic ammo might be the issue.
People recommended AE 95gr as being good in these little guns, along with the xtp jhp, so I bought so of those.
Also, I checked extractor tension and manually slipped a few different types of .380 rounds under the extractor with the gun apart...very difficult to get them in there.
I used a diamond file to break the sharp edges on the bottom of the extractor, this improved things noticeably when cycling cartridges manually.
At the range, the gun ran!I! I still had a few failures of the slide locking back on an empty mag, but the gun feeds, fires and ejects.
Shoots pretty well too, granted it's only 21ft.
Soooo much happier now. It looks like it'll be worth the effort to get a few more mags and a holster now.