While working on my collection I found a few of these 9mm FMJ (?) cartridges with a little ‘nipple’ on top. At a closer look that seems to be the result of storage in the PVC rack, but the quality of the coating (?) is vey bad also. It’s not just one cartridge, all 3 have the same ‘nipple’ and the craters on the bulletsurface. Has anybody seen these bad manufactured bullets too?