yes, I understand where you are coming from, and the batf, which is a rogue agency, have tremendous power, and control over gun stores, they can come in an look at your books anytime night or day without warning, and the slighted mistake in your bookkeeping can mean a loss of your ffl [federal firearms license]

and yes, they keep track of every nics gun check, they are all on computer with the nics transaction number.

its all a big mess. if you are not a resident of the state where you want to purchase a pistol, federal law denies you from owing it. no sale. if you want to buy a rifle from out of your state then your state must not have a waiting period for a rifle or you cannot buy one.