“Three evenly timed shots rang out within about 2 seconds, allegedly from an Italian Carcano bolt-action rifle. That seems highly implausible to me”
I don’t know what tape you listened to, but the general consensus is that Oswald had over five seconds to execute three shots. And he had all the time in the world to line up the first shot, so it’s really more than five seconds for two shots. Oswald’s feat has been repeated several times.
The rapid shots picked up by the microphone were thoroughly debunked, the motorcycle had to be in a certain place to pick them up, they used all the sound and video evidence and proved these rapid shots were not true.
Oswald fired three shots in 8.3 seconds, the first round was already chambered. They showed an 89 year old man in the documentary (search beyond conspiracy on youtube) getting the shots off with the same model rifle in 7.2 seconds taking extra time for the last shot like Oswald did.
All I know is the shots I heard on the news - I can’t say what I heard was authentic. But what I heard was boom-boom-boom, about 2 seconds, not 5. Somebody might do it in 5 seconds, but not 2.