Oh, but it DOES matter.... The FBI weren't numbskulls.... They knew everything that has been posted on the subject of the difference between the TSBD carcano, and the carcano in the BY photo......but instead of telling us the truth...They lied and covered up the truth.
Back in the day....The FBI had access to all of the information that researchers have diligently uncovered and presented.
Thanks to the internet, and computers, we now know a portion of what they knew...when LBJ was in control.
Thanks to computers we can now examine evidence like the BY photo and see with our own eyes details that they knew way back in 1963. We no longer have to accept their lies... They KNEW that the carcano in Lee's hands in the B.Y. photo DID NOT match the carcano that was found in the TSBD. .... But they pretended that they couldn't determine if it was, or was not, the same rifle. Then they invented a fanciful tale about Lee fabricating a sling for the rifle so it would appear that the TSBD rifle was the same rifle that Lee held in his hand when the photo was taken.