For all Kennedy's Kennedy-ness, the man is comfortably handling an automatic rifle in the Oval Office. be nice to see that kind of thing again.
He does have the air of man who is enjoying what he is doing in the photos I have seen of him handling guns. Have we had a POTUS since JFK about whom you could say the same thing? I can't recall ever seeing a picture or film of LBJ with a gun. Reagan and Carter both came from backgrounds that made them familiar with the use of guns, but I don't recall seeing a picture of either of them handling a gun that looked like anything but a staged photo-op. Carter genuinely was a hunter, though; and I've read letters between Reagan and the inventor of the Gyrojet pistol that indicate Reagan owned one and enjoyed shooting it when ammo was available.
Bush I, for all his background as a military pilot and head spook, always had such an air of prissiness about him that I never could picture him hunting or shooting and actually enjoying it. Tennis or golf at the country club seemed much more his style.
Bill Clinton, as we all remember, was the most anti-RKBA POTUS we ever had; even though his background was such that he should have grown up hunting and shooting. In fact, I suspect that he isn't a committed anti in his black little heart. That, like everything else he ever did in an official capacity, was nothing but a calculated political maneuver. In the case of the AWB, a miscalculation..as even he admitted.
Bush II is supposedly a gun enthusiast. The internet is filled with FOAF stories spread by his partisans to the effect that he has a Thunder Ranch (or similar) .45 in his nightstand at the Whitehouse, among other things. I don't buy it. Despite his efforts to cultivate the good ol' boy image by brushcutting at his ranch and so forth, he still strikes me as more of the tennis/golf at the club type. He has minions to carry guns for him.