This Guy in the video is a liar.....
He might convince an ignoramus that what he is saying is valid.....But he'd never convince a knowledgeable person that a sawed off barrel that was designed to fire a bullet with the diameter of .359" would leave ballistic grooves on a bullet that was .357".
The rifling in the barrel of the S&W was worn out, and there was only two inches of barrel which could have come in contact with a bullet
The hot gasses blowing by the lead bullet would have prevented the rifling from leaving "tracks" on the bullet .....
Calling a man a liar (with no proof) is cowardly.
So you're a ballistics expert, now, Walt?
Your "theory" is that every witness who contributes to proving the guilt of Lee Harvey Oswald is a liar. That's all you've got. How about some evidence that somebody else killed Officer J.D. Tippit? Not "thumb-suckers': Identification of an alternative shooter and physical evidence is required. Over to you... genius.