Method Request for help with Method (Firearms)

[Arcitect]

Hi guys, sorry to be a bother. I just wanted some second opinions. So, I plan to ctb by firearm, so I recently bought a shotgun. I wanted to know if these materials would get the job done with a high probability of death.

Ammunition: #00 Buckshot (12 guage)

https://palmettostatearmory.com/win...00-buck-shotshell-ammunition-5rds-xb1200.html

Firearm: Tokarev TAR 12P (12 gauge AR (Armalite Rifle) style 5 rnd semi automatic shotgun)

https://palmettostatearmory.com/tokarev-tar-12p-12-gauge-ar-style-shotgun-18-5-semi-auto-tar-12p.html

Also, could someone please explain to me how I should aim? I understand I should put the barrel in my mouth but I don't know the angle. Would it be okay if I put the gun on the ground and aimed vertically up, then put the barrel in my mouth with my face facing the ground?

Sorry to be a bother, I'm just really anxious and want a second opinion. Thank in advance for the help.

 

[Temporary Breakway]

Wait a moment I can find you an article here with similar dimensions and how to use it