You can go to an out of state gun show and sell your rifle- to the holder of an 01 Dealer FFL. It is illegal for you to sell directly to an unlicensed resident of another state.
As far as BUYING at an out of state show- you can buy a rifle or shotgun- again- FROM a DEALER- if the gun does not violate law in your home state. Expect to get turned down by dealers that cannot figure out what NYS law IS now.
You cannot buy a handgun outside of your state of residence- period. Not FTF from a private person, nor from a dealer. It would have to be shipped TO a FFL holder in NY- and btw, New York law will only allow a NY dealer to ACCEPT a handgun from another dealer.
Now would you like a link to the Realtor.com website, and the phone number for U-haul? Sorry, bro.
What we have here is... failure- to communicate.