Hi guys and gals, I'm new to the forum. Have a problem with the slide locking open with rounds still left in the magazine. During the 200 round break in, with ball ammo, it locked open 4-5 times during the first 80 rounds and was fine thereafter. I then ran 90 rounds of Speer Gold Dot Personal Protection without a problem. Last weekend I ran 80 rounds of Cor-Bon JHP 90gr and the slide locked open 9 times with rounds left in the mag. Switched to ball and everything was fine. Normally I would say that Kahr 380's dont like Cor-Bon but I've read reviews where that ammo has worked fine. Could it be the slide stop. Any of you had similar problems with Cor-Bon? Thanks in advance for your responses. Wanna kill these ads? We can help!