", 7 July 2011 (UTC) 
 ***Yes, usage of classifiers varies between people, and there really isn't a specific one that is ""right"", I don't think. Military literature tends to use 發/发 (fā) for munitions - 一发子弹 (one bullet)，一发炮弹 (one artillery shell)，一发核弹 (one atomic bomb; ROC nomenclature)，一发原子弹 (one atomic bomb; PRC nomenclature)，一发氢弹 (one H-bomb). ""一颗"" seems to be in common use for general literature.  | —  email 07:09"