The logical "reasonable inference" here is this one....
The rifle we see Oswald holding in the 3/31/63 backyard photographs and the rifle with the serial number C2766 stamped on it that was found on the 6th floor of the TSBD on 11/22/63 is the same rifle that Klein's shipped to Oswald on March 20, 1963 (which is the exact same "C2766" rifle referred to in the Klein's documents).
Any other "inference" is just plain silly and far-fetched.
So, you added this to your post two minutes after I asked the question.... How disappointing.
But I'll reply to it anyway.
The rifle we see Oswald holding in the 3/31/63 backyard photographs and the rifle with the serial number C2766 stamped on it that was found on the 6th floor of the TSBD on 11/22/63 is the same rifle that Klein's shipped to Oswald on March 20, 1963 (which is the exact same "C2766" rifle referred to in the Klein's documents).There is not a shred of evidence that shows the rifle that Oswald is holding in the backyard photos has the serial number C2766 on it and/or that it was ever found on the 6th floor of the TSBD. There is also no evidence that it's the same rifle Klein's allegedly shipped to Oswald.
Your entire claim is nothing more than contrived conjecture motivated by wishful thinking.
Do you have proof that shows the rifle Oswald is holding in the photographs has the serial number C2766 on it?
Do you have proof that shows that the rifle Oswald is holding in the photographs is the same one that was found at the TSBD?
Any other "inference" is just plain silly and far-fetched.Does this mean that you completely dismiss the possibility that Oswald was manipulated and, if so, what is your dismissal based on?