More than this, witnesses are more reliable about some things than others. The witnesses who said the rifle was/looked like a Mauser (Weitzman, Boone, and Craig) also all said that they did not pick up or examine the rifle. They only looked at while it was on the floor behind some boxes. They also all testified and/or wrote in affidavits that they didn’t move the rifle, and that Capt Fritz and Lt. Day took charge of it. This rifle was carried out of the building on film and brought back to the station.
The above applies to Boone and Weitzman but not to Craig. Craig is a special case and should be treated separately. While Boone and Weitzman said the rifle appeared to be a Mauser the weekend of the assassination, Craig didn't start claiming to see a Mauser on the sixth floor
until the 1970s.
There were two affidavits by Craig on the weekend of the assassination. In neither of those did he mention handling the rifle or identifying it as a Mauser. He also didn't mention a Mauser in his testimony to the Warren Commission nor in his testimony at the Clay Shaw trial in New Orleans (I cited all those earlier here:
http://www.internationalskeptics.com/forums/showpost.php?p=12253356&postcount=838 )
In 1968, in fact, in an interview printed in the LA Free Press, he specifically denied seeing a Mauser when he said "I couldn't give its name because I don't know foreign rifles" ("RC" in the below is Roger Craig, "PJ" is conspiracy theorist Penn Jones, while "FP" is the LA Free Press interviewer). He also mentioned he had
heard there was a Mauser found on the roof and then repeats some erroneous hearsay about that supposed rifle:
http://mcadams.posc.mu.edu/images/craigandjonespage7.jpg
In the 1970s, Craig started claiming he not only saw the rifle on the sixth floor, he personally also saw the markings that identified it as a 7.65 Mauser. This is Manifesto's 'evidence' for Craig's identification of the rifle as a Mauser.
But the point is 'the Mauser on the sixth floor' story Craig was telling in the 1970s was contradicted by his own statements from earlier, as well as all the photographic and film evidence, as well as the testimony of the man who actually handled the rifle, transported the weapon to the crime lab, and photographed it there and made note of all the markings on the rifle.
By the early 1970s, yes. Craig was telling a story that he handled the weapon and saw its markings and determined it was a 7.65 Mauser. But that's not a claim he ever advanced in the 1960s at any point. It's a story Craig invented in the 1970s to garner attention. It's also clearly a story any reasonable person would concede is a falsehood.
Which is why it's still repeated as evidence for a conspiracy by conspiracy theorists like Manifesto.
So while Boone and Weitzman made an honest error, Craig is a special case. He lied.
Hank