Depending on age and models, they could be quite valuable. I started getting rid of guns last year by selling to FFL holders, mostly collectors. I was selling mostly WW1-era rifles, and came away with over $7,000 from five or six firearms. The one pistol I sold was a Colt Ace made in 1938. It sold for $2,500. The Colt Ace was a .22 made using a 1911 .45 frame. The best advice is to ship to Jim through a FFL dealer for a few bucks per gun for his trouble. Turning them over to a sheriff is a bad idea. As for the ammunition, there are collectors who pay big bucks for some of the old boxes the ammo came in. I used to have a federal license, but dropped it about 30 years ago when it became more trouble than it was worth. When I was licensed I charged $5 or $10 to handle a shipment like you're talking about (per gun, plus shipping charges, with you bringing them to me unsealed but packaged).