Ain't easy, but in a SHTF world, I'd have to think about food and protection, so a 617 6" and a Mossberg 590/Remington 870 12 guage. If it's a S&W choice for two, it will be a 617 6" for food and a 629 6" for elephants. My wife would choose a 442 and a 66 4" for her own elephants. Ease of operation, interchangeability and availability of ammo drives the choices. This is a great question to ponder. I just watched a few videos about Detroit's slide into oblivion. YouTube has them. Welcome to America 2020? Makes me both sad and angry at what our governments, courts, bleeding liberals and corporate bigwigs have done to this great nation.