Right, cycling the bolt almost always means taking your eye out of the scope to do it. Yes, a bolt can be recycled in 2.3 seconds. But to reacquire the target, a moving target, all in that same time frame, impossible.
Here is a video of a bolt action shooter hitting targets at 200 yards, 39 shots in one minute, including reloading. This is a superb shooter, but he is doing it much faster than Oswald was supposed to have done it.
For some reason the video link did not show up, but I reviewed the material. It appears they are shooting at a 15.75 inch stationary target at 200 yards. These are people that have plenty of range time to practice their skills to become perfectionists in competition.
You cannot compare that to Oswald, a minimally experienced shooter, shooting at a volley ball size target at 88 yards that is in motion.
When someone shows me a person that scored marksman in the military, that seldom gets range time, whose scope is known not to be zeroed, using a rifle and scope identical to Oswald’s, shooting from the same elevation Oswald did, at a volley ball size target, moving at the same speed JFK’s vehicle was, in the same direction, at the same range, and get two perfect shots in 2.3 seconds, I will then believe Oswald could have done it all by himself. That’s comparing apples to apples.
Anything else is like trying to call an apple an orange or a grape or whatever else is not identical.