Wrong, it’s somewhat true about bullets? But, I think you were really trying to say “You can’t have enough cartridges! or, maybe that “You can’t have enough ammo! Do you understand that you are talking about the metallic element of a cartridges/rounds alone? Without gunpowdwer, primer and casing. I don’t want to build complete rounds/cartridges at home. I want a ready to use supply
Your absolutely right. It's something my father would say to me as a child whenever we went hunting or shooting. So the expression carries on in my memory of him. A "pill" without the rest of the equation is a bit useless.