Wouldn't surprise me; many tiny/thin guns suffer issues stemming from lack of space. Kahr had to cut out a scallop at the front end of the ejection port on the MK/PM/CM series guns in order to be able to eject a live round. My P380 will not feed any ammo loaded with the Hornady XTP bullet (Hornady Custom, Critical Defense, Fiocchi Extrema). Every other type of FMJ and JHP I've tried has fed just fine.