Federal law does provide some protection for gun owners who seek to transport their firearms over state lines. However, gun owners shall follow the guidelines prescribed by law. Federal Law discusses Interstate transportation of firearms in 18 USCS § 926A.
According to § 926A, any person who is not otherwise prohibited by 18 USCS §§ 921 from transporting, shipping, or receiving a firearm shall be entitled to transport a firearm for any lawful purpose from any place where he may lawfully possess. Such person can carry such firearm to any other place where s/he may lawfully possess and carry such firearm. However, during such transportation the firearm shall be unloaded, and the firearm or any ammunition being transported is not readily accessible or is directly accessible from the passenger compartment of such transporting vehicle. In the case of a vehicle without a compartment separate from the driver’s compartment the firearm or ammunition shall be contained in a locked container other than the glove compartment or console.