Yes, I have and yes Budd Dwyer does give me hope in my method, which is a barrel in the mouth (but instead of a pistol, it would be a long gun, a shotgun to be exact). Also, I have seen other suicides via firearm. A few examples include the guy who CTB'ed in an interrogation room when the cops and detectives walked out of the room for a moment (he hid his pistol really well or either the detaining officers failed to thoroughly check his pockets), and another one who hugged his ex-girlfriend and after his ex went up the elevator, he pulled out a pistol and offed himself. There are more but these are a few to name.