I've used AmmoSeek a few times when I was trying to stock up on 9mm and .223 ammo. I found it pretty handy since it compares prices from different sites, which saved me some time hunting for deals. In my experience, the listings are mostly accurate, but I did find a few instances where the prices weren't quite what was shown when I clicked through, so it pays to double-check. Just a heads up, while most sellers seemed legit, I did come across one or two sites that looked a bit sketchy, so I always stick to the ones I recognize. Definitely keep an eye out for reviews if you're unsure about a particular seller. Overall, it's a solid tool if you approach it with a bit of caution.