Good point Tim maybe there is some distinct specific difference with Oswald’s rifle that would  prevent any trace of gunpowder from escaping the chamber even though it was exposed 3 times during the bolt operation ejection of shell and loading the next round?

What do you think about the CBS time trial shooters  not having used Oswald’s rifle? Does that invalidate the fact that 3 shooters were actually able to fire 3 shots and get at least 2 hits in less than 6 seconds?

There's nothing asinine about that comment.
You are little more than a robot constantly spewing the Warren Commission's narrative.
Is there a single point or detail that you deviate from the Warren Commission Report?

And name a single thing - the tiniest thing - that you have proven to anyone. You don't even know the difference between a fact and a theory. How can you 'prove' anything if you don't know what a fact is?
You are the second worst kind of frothing-at-the-mouth, rabid zealot. Your only saving grace is that you don't hide what you are.

Name a single detail about the assassination where you differ from the Warren Commission's narrative.
And by the way - when did Oswald make his preparations? He was down on the first floor talking to Eddie Piper while Bonnie Ray was up on the 6th from noon until  a few minutes before the Presidential limo entered Dealey Plaza.
Maybe he was the man with the rifle Arnold Rowland saw on the 6th floor.
Try to think for yourself for a change.

A muzzle-loading rifle does not issue fire slugs at supersonic speeds.

Who knows what you were hearing.

What you heard from a muzzle-loading rifle has no bearing on what Bowers heard during the JFKA.

Bowers testimony is rather clear.

Needless to say, if the alleged magic bullet even grazed the spine during its supposed journey, it is doubly impossible that it could have created a throat wound that was small (5 mm), neat, and punched inward, much less a throat wound that had damage behind and beneath it that was larger than the wound itself.