I'm pretty certain that handgun will have to be unloaded and locked up and secure in your locked trunk. The ammo, I believe, will have to be somewhere other than the trunk.
I could be wrong. Check the state laws you are traveling through.
I suspect you haven't, but if you have obtained your...
Just seeing what the mood is out there. My next gun purchase will be a revolver. Then maybe another revolver, just because they're so damn fun.:biggrin: