On my first trip to Africa I went through JFK. No problem going out, but when trying to check into Delta's domestic terminal coming back the young woman on the X-ray machine went "EEK!" when she saw a rifle inside my case, despite me already telling her there was a firearm inside. Two Port Authority cops showed up with their hands on their handguns, and proceeded to quiz me about my gun license, which I didn't have of course, since we don't need one in Montana.
Yep, same story.