Help Can a 12 gauge black powder shotgun kill you?

[Karl Heisenberg]

Firstly, Hi! This is my first post here so I want to welcome you all.
Like the title says, I am not sure of it, especially of the black powder. Does it have enough strength over smokeless powder to kill you?
I would put the shotgun barrel horizontally into my mouth and then tilt it downwards about 45 degrees, aiming right onto brainstem. Like in this picture:



For safety reasons, I won't say anything about my suicidality, it's just a question. And please, excuse my english if I did any mistakes.

 

[Imagined_Euphoria]

I have no experience with blackpowder, sorry, but that picture is beautiful. Finally some correct angle.

 

[locked*n*loaded]

Of course a black powder weapon can kill you. I assume you have experience weighing and packing the powder. What type projectile do you anticipate using?

 

[Karl Heisenberg]

Of course a black powder weapon can kill you. I assume you have experience weighing and packing the powder. What type projectile do you anticipate using?

Thank you for your answer. I am not an expert, I just have one 12 gauge shotgun shell filled with BB birdshot (with diameter of 0,157 inches).
Despite I know that birdshot is not the best type of projectile for this purpose, I didn't have much of a choice. But at least what I heard of, it should work in point blank distance with whatever projectile you are using.