18% sounds about right. More are delayed with a release without ATF follow up after 3 business days. If follow up is proceed then the customer is called then. this can happen within a few minutes of the customer leaving the store. If the follow up is denied the 4473 is marked as such and the firearm is not released. The problem is sometimes the denied follow up occurs 5 ,6 or even 10 days later. This means the firearm was released within Brady law standards to someone restricted from owning a firearm. We use gut feelings to decide wither or not to release a delayed firearm. Most of the time when the ATF calls and ask if the firearm was released we can say no. There are rare occasions when we transmit the 4473 and info to the ATF and send them after the firearm.