Gun Laws in Different States
Gun Laws vary not only from State to State but often from County to County within a State.
If traveling to another state I highly recommend visiting the following webpage on the NRA-ILA website which provides an easy to understand "non-legalese" version of the Gun Law of every State. You will also be provided with a map showing all the States that recognize your State's pistol permit - if any - https://www.nraila.org/gun-laws/state-gun-laws/
You must familiarize yourself thoroughly with the Gun Law of the State you plan on visiting or even traveling through for both handguns AND long-guns.
Penalties can be severe for Gun Law offenses so it's best to be sure, you may even want to contact the State Police of the State you travel to or whichever agency may be more appropriate including the Sheriff's Department. Be careful, be safe, and obey the law.