As I was enjoying my nightly cigar whilst cleaning the pool, I had a thought. Yes, I know, these things can be dangerous. But I wondered about how loading ammo types will work? I know the mechanics of how to do it, but I wonder what will happen when you run out of, say, Semi-wadcutters for your 9mm Pistol? Bear with me a second here: So I equip my 9mm pistol with stock ammo, and decide that I wish to swap that out for SWC. I select 9mm SWC in the pip-boy and when I close out the pip-boy, the reload animation runs and I know have a full mag of SWC. I assume that if I start firing my 9mm, that when that mag runs out, the game will auto load a fresh mag of 9mm SWC. It will do this until I run out of 9mm SWC. What happens then? Will my weapon click empty and I'll have to go into the pip-boy and select another ammo type, or will the game default my ammo back to the basic ammo? If it does default back, then what ammo type does it select? Is there a tier of ammo types for each caliber? Let's say that the three ammo types for 9mm are FMJ, SWC and JHP. If I select JHP, then run out, will it automatically switch to SWC, and then finally to FMJ? Or will the pistol run out of ammo each time, forcing me to enter the pip-boy and manually select each ammo type every time?