I see different types of rifles and pistols and so many types of ammo, I just try to pick up all ammo to ensure I have the types I need but sometimes it says I don't have room . I know all shot guns in game use 12g, that's easy, I know ak format weapons use 7.62, ok, ars use 5.56. No problem, but the mp7, or "hellfire 4-6" the marauder and so many different types of pistols, how can I find out what they use? Google tells me nothing on the subject, which makes me think it must be so obvious I'm an idiot for asking. Is there a chart or menu somewhere I'm missing which states a little about weapons , like ammo types, dps, dpr. Etc ? Thanks in advance for any help.