In fairness to President Reagan, the FOPA did also provide some protections to firearm owners which, while they may be scoffed at as unnecessary, are in some cases quite significant.
Without the FOPA, it would be nearly impossible to transport firearms on a cross-country trip without running the risk of getting pulled over in some town that didn't like them. To be sure, the probability of getting searched would have been pretty small (though with today's so-called DUI checkpoints not as small as it should be) but even so, there's no reason law-abiding people should have to take such risks at all.
Travel convenience for hunters weighs small against the loss of the prime reason fopr the right to keep and bear arms.