Oswald was a marine.

His target was moving and he had a very limited line of site, and still managed to hit 2 out of 3 shots.

That kinda shit is what professional shooters can do.

This was 1 shot at a fairly standard range on a target literally sitting in a chair on a well lit stage. You don’t need to be a professional to make that shot. I’ve had friends on their first day shooting make shots like that with a decent rifle, some coaching, and about 10 rounds of practice at shorter ranges.