If you could only bring one gun to survive the apocalypse, which one is the best pick?

There is one gun that is clearly superior to all others - The Raging Judge Magnum - nothing else even comes close when it comes to the complete apocalypse challenge including:
- Self Defense
- Travel
- Ammo Scarcity
- Hunting
- and Exotic threats.

Information sources and references:

Body Armor Testing (ShootingTheBull410 video):
   • Bulletproof ballistic vest review: En...  

Muzzle Energy Stats (Ballistics101.com):
- Pistol Cartridges
http://www.ballistics101.com/9mm.php
http://www.ballistics101.com/45_acp.php
http://www.ballistics101.com/357_magn...
http://www.ballistics101.com/44_magnu...
http://www.ballistics101.com/45_colt.php
http://www.ballistics101.com/454_casu...
- Rifle Cartridges
http://www.ballistics101.com/223_remi...
http://www.ballistics101.com/7.62x39.php

454 Casull defeats bullet proof glass (22Plinkster video):
   • Which handgun caliber will go through...  

454 Casull shatters cinderblock (Kentucky Ballistics video):
   • .454 Casull vs Concrete Blocks  

Maximum Expansion Tests (ShootingTheBull410 video):
   • Taurus Judge/Governor Ammo Test: Lehi...  
   • Ammo Test: Lehigh Maximum Expansion ....  
   • Judge/Governor Ammo Accuracy Test: Le...  

Maximum Expansion Meat test (GunDestruction video):
   • Video  

Federal 410 Penetration & Grouping video (ShootingTheBull410):
   • Taurus Judge buckshot ammo test: Fede...  

New York City Police & FBI Shooting Statistics (PDF study):
http://www.theppsc.org/Staff_Views/Av...

Citizen Shooting Statistics (Claude Warner study):
http://wethearmed.com/general-firearm...
and
https://tacticalprofessor.wordpress.com/

Cartridge Popularity Stats (LuckyGunner.com):
https://www.luckygunner.com/labs/2013...

Cylinder Adapters made by Shortlane:
https://www.gunadapters.com/

45APC Moon Clip (ShootingTheBull410 video)
   • Gun Experiments: .45 ACP out of a Tau...  

Wrecked Chamber (Redit post)
  / goodbye_g21  

Blown Receiver (The Firearms Blog article)
http://www.thefirearmblog.com/blog/20...

454 Casull Comparable to 12 Guage Slug (ShootingTheBull410 video):
   • Raging Judge vs 12-gauge shotgun: Dou...  

Shooting from a Car and a Motorcycle (Paul Harrell videos):
   • Shooting from a Car.  
   • Shooting from a Motorcycle  

454 Casull Hunting (Articles from Various Sources including Handgun Hunter Magazine and Gun Digest):
http://www.freedomarms.com/trophies/i...
http://www.calibros.com/frontier390/b...
http://www.handgunhunt.com/promo/memb...
https://gundigest.com/handguns/huntin...

454 Casull 45 inch Penetration (ShootingTheBull410 video):
   • Raging Judge vs 12-gauge shotgun: Dou...  

410 Birdshot Pattern Image (410handguns.com study)
http://www.410handguns.com/taurus_spd...

Images from the movies and TV shows:
- San Andreas
- Jurassic Park
- Tremors
- Terminator
- Starship Troopers
- Stranger Things
- Dog Soldiers
- 10 Cloverfield Lane

Background Music:
- Tumbleweed Texas - Chris Haugen