Plz Help me remember title of book


Read a book a few years ago about a group that accidentally discover a device that makes most weapons inert. First chapter starts off with the group accidentally causing the facility guards ammunition in there guns to explode. Eventually they refine the device that instead of ammo exploding it just doesn't work at all. If anyone knows the name of this book please let me know.


Creative Writer
Hmm, the only book I can remember of that theme was a 50's/60's novel where a group of scientists create a field that neutralises any radioactive source, and decide to turn it on, telling the world that the Cold War must over before MAD is the inevitable result. As we know, so far it hasn't.