Diagram for medulla oblongata

[Lavender1999]

I've chose to go out via shotgun to mouth, eventually, but when you research how exactly to get it right without blowing off your face, the only info is to place barrel in mouth at a 45 degree angle. I have no idea how to measure that but is there some kind of diagram of the positioning of a shotgun in mouth where it would fire directly into the medulla oblongata? I'm more visual with this stuff

 

[siray]

Sorry to bump this old thread, but 45 degrees is way too much. From what I have read in the firearms megathread, the shotgun tilt should be between 10 and 15 degrees. I don't know how to draw a diagram, but you get the idea.