You're talking about one of the most reliable and dependable guns in the world. It has been referred to as the AK-47 of pistols. In other words, it will shoot darn near anything. And the ONLY 9x18 makarov ammo that I would even consider to MAYBE have an issue with any 9mm makarov chambered pistol, would be American ammo. But russian and czech ammo was made specifically for these pistols. Buy the silver bear ammo. Matter of fact, spend the extra $1 per box, and buy the Silver Bear HOLLOW POINT ammo. Then you have great plinking ammo as well as an ammo that's also pretty effective as a self defense round. Or if you really want a good defense round, get some of the new Buffalo-Bore 115 grain 1000 fps ammo. I've heard good things, haven't tried it myself. But silver bear ammo is great ammo. And if you know where to look, you can still buy it for about $8-$9 a box.