See the above website for the most acccurate info.
Probably not a good idea to bring your own. Travelling through NJ is ok with guns & ammo in the trunk or equivalent or locked seperately. Coming into NJ, shooting a match and departing on the same day is also good. Staying overnight in NJ with your oun gun has no provision in NJ law. We are restricted to carrying a gun to or from a match, hunting or a gunsmith with no stops.
If you're staying in a person's home, who has an NJ FOID, he might be able to keep it in his home for you. Motel, no way.
Look into renting or borrowing an NJ resident's gun at the range might be your best bet. Even then, he can't let it out of his "control", whatever that means and is limited to an eight hour period.
Sorry,
Norm
in NJ for the last 20 years.