Only trouble I've had with mine in about 300 rounds is with some reloaded ammo. I had some brass that had apparently been shot with very hot loads and the head area had expanded so far that it wouldn't size back to specs. This prevented its chambering fully and gave me some troublesome stoppages.
It is VERY important to check each round to make sure it goes ALL the way into the chamber of the disassembles barrel. (I do not necessarily recommend working the ammo through the action of the assembled pistol.) When I figured out the cause of my problem, it was something of a hassle to gauge almost 2,000 rounds, but I did it, and have had no more problem.
My little pistol functions flawlessly with the gauged ammo and with all the three brands of factory loads I've run through it.
To be fair, the ungauged ammo with oversized brass gave similar problems in a Kel Tec, a Glock 19, and an Inglis/Browning High Power, so the problem was NOT with the Kahr.
I suggest that anyone attending an intensive firearms training course take a spare firearm. After all, you will probably be poutting the equivalent of several years' normal service wear and tear on the pistol in just a few days. And stuff happens. Having a spare, even if not the same exact type, will allow you to continue to get the benefit of the course, without being forced into spending a lot of money in a true seller's market.
Best regards,
Johnny
