Another old fart reporting for duty sir! The above post have some wonderful choices. Such as the S&W 65, 29, 19 and 57. All great guns and without a doubt would serve one well as I have or have owned all of them. I would chose a revolver ( old farts club) because all my brass is there for retrieval. You do have to have a shotgun for survival to put meat on the table, hard to hit a running bunny with a handgun. In fact I've had more than one make a clean break when I had the shotgun. Choice there would be 870 or model 37 Ithaca. 45 Colt revolver and 45-70 rifle. Oh I almost forgot, plenty of BP and lead.