i have a cz po1 and i havent gone shooting in a couple months... my cousins bf gave me some extra hollow point 9mm bullets he had left over.. i loaded the clip with all 14 bullets and then i shook it and it felt like something was loose in there... i dont think thats ever happened before.. is there a prob with the mags? the both did the same thing.. or is it because they are hollow point?? any help is appreciated thanks guys!