Lawmakers looking to expand gun owners travel rights
Story here. I'd suggest a major improvement would be to modify the present protection for interstate travel (provided the firearm may be possessed in the state where you begin and in the state where your trip ends) to convert it into something other than an affirmative defense.
An affirmative defense is something that amounts to: even tho the defendant broke the law, he still should be acquitted because (to choose some examples) the statute of limitations has run, or he was insane, or his violation was legally justified.
Court have construed the protection for interstate travelers to be such a defense, thereby rejecting lawsuits for false imprisonment. Antigun governments and agencies can arrest despite the protection, and essentially say, "tell it to the judge." So the gun owner might win acquittal in the end, but in the meantime he's been jailed until he bonds out (not easy to do far away from home), loses thousands in legal fees, and so on.