Regardless of what you may think, it will cause you no problem resizing brass and wipes off dry easily. I load probably 3-5000 rounds of ammo a year for 25 different calibers and have been using Mobil 1 to resize for at least ten years. I don't kow about NH3 radicals, but it will cause you no problems with brass cases, the neck eventually crack from working the brass just like they do with any other lube. I have no argument with anything you are saying, but as a practical matter it works.