i just seen it in the in the megathread and assumed they knew what they were talking about
Any member can create a megathread on this forum. If they post false information, they are never held responsible. If any other member just notices errors and posts about them, they are attacked and ganged up on even if they are correct.
If you do proper research, I would think the mouth would be as sure as it gets. I suspect most who do mouth go too high and miss the brain stem entirely.
You are doing exactly as you should by looking at images and trying to aim at a certain area. I am not claiming to be an expert or to have great knowledge about this subject. However, I did a lot of research on the method of self inflicted gunshot. I was going to use a pistol, so my research was for that. It is really about increasing percentages of success based on past results.
These things increase percentages:
1- Aiming for the brainstem
2- Going all the way thru both the right and left sides of the brain
3- Bigger caliber is better than lower
4- Hollow point bullet is better than normal
But using a shotgun that is powerful enough and with the right ammunition seems to do more damage. With this kind of shotgun and ammo, entering thru the mouth could hit the brainstem and both sides of the brain. I think people still want to go behind the ear with the shotgun. But aiming the barrel back there at the correct angle is too hard. So they go thru the mouth. But it better be aimed low enough to hit the brainstem. One man had removed most of the upper part of the brain, but the brainstem had enough to keep him alive. Then the doctors actually debated if they should let him die.