Here's a story I went into the Brownsburg Wal mart and I was looking at ammo, and a guy says what ammo you need, and I said well like a lot of people I am out of 223. He replies yeah I know when the truck comes in and I buy every single round of ammo I can! He says do you need an ar, I said maybe what do you have? He replies well I buy every ar here I can get my hands on, I said really I said well bow much do you want for the colt? Because he said he has bought sigs,dpms, and colt! I believe the colts are like 899 or so he said I've been selling them 2200, I replied with one word! Wow! I said you better becareful doing that wouldn't that be illegal, since you are buying to gouge people with the intent to resell. He said they can't prove it!
That's very much frowned upon and I'm pretty sure the BATFE will figure it out!