I understand that we don't know each other well, but Ron knows that I considered him family and it's for this reason that while I was hesitant, I decided to write you.
I had the opportunity to speak with George on Friday. At first he seemed fine, but the longer he talked, the more paranoid he seemed, and I mean more so than justified under the circumstances. He's carrying around pellets that can paralyze and kill, even if touched by mistake if you have any injuries including the paper cuts. He even said that he's still testing it.
Besides how dangerous it is considering the accidental risk, using some kind of Muggle weapon seems risky when it's untested and untrained.
That wasn't my biggest concern though. I've met a lot of unhinged people thanks to my father and he seemed... well not in control.
I thought you should know.