I'm glad to see some references to the 30-30. Every deer I've killed I killed with a 30-30. During field dressing those animals I was really impressed by the damage a 30-30 does, ripping lungs and hearts to shreds etc.
Since moving to the remote woods I've tried to collect some guns for a end of the world situations. I've bought a .22 semi auto rifle and handgun, a Mini 14 .223. I've replaced my old Marlin 30-30 from 30 years ago with a used non Remlin (non Marlington if you will) 336 in 30-30. I've always had a couple of shotguns, a single shot .22 and assorted other handguns including a .38 SPL. .40 S&W and a .357.
I think my collection is fairly complete, at least there is nothing else I'm looking for or want. I also think I have enough gun among them all to handle anything that might come up... at least in the Missouri Ozarks.
I've also been heavily involved in stock piling ammo.