They only had limits on certain calibers, mainly 9mm, .40, .45, .223, 7.62x39, .308 and I think .380. You could buy all the 10mm, .38, .357, 12GA, .243, .270, .30-06, and a bunch of other calibers, well at least the academys I went to anyway. They also let you buy up to 3 boxes of one caliber if you bought a firearm that used it, bought a .45 and they let me buy 3 boxes at the same time instead of the 1 box due to customer complaints about not being able to buy enough to shoot their new purchase.