Handy in Diamond City, has 601 caps worth in one trip. But with almost 130k caps, it would probably take me quite a while. This means I can buy a bunch of ammo, throw it in a box somewhere, then later sell it all for the exact same price. I have level 3 Cap Collector (although only 1 and 2 matter here), as well as 17 Charisma and 5 ranks of Junktown Vendor.45, 5.56, and 10mm rounds go for 2 caps each, while flares, railway spikes, and flamer fuel go for 1 cap each. I'm not absolutely certain this works in a vanilla game (I've got a ton of mods, so one of them may be causing this to work when it shouldn't), but in my game I'm able to buy and sell certain ammo at 1 or 2 caps each way.
