I recently picked up a bolt action .22 Marlin XT-22 and I live in NH and I would like to visit my grandparents in Rhode Island. I would most likely stay there for over a month. I want to take my firearm. How do I legally do that. The xt-22 should be legal in RI. Do I have to fill out any forms or can I take it across state lines and keep it in RI for a month without doing anything. If anyone can help I would greatly appreciate it.