First of all, let's not cloud the issue with what Fred Huntington did. It really bears little, if any, relationship to the topics at hand, which are the two Warren Page wildcats in 6mm or .24 caliber.
The Page .24 caliber wildcats are two seperate cartridges! One originally based on the 7.62 NATO case, the other originally based on the .244 Remington case.
Your photo shows the .240 Page Pooper, which was based on the 7.62 NATO case. This is
NOT the cartridge that the original poster of this thread asked about!
The original poster on this thread posed a question about the .240 Page
SOUPER Pooper which was a larger capacity cartridge based on the .244 Remington case.
Don't take my word for it -
From P.O. Ackley's "Handbook For Shooters & Reloaders Vol. I" p.310 -
.240 Page Pooper
"This is the forerunner of the .243 Winchester factory cartridge, and was originated by Warren Page, the ARMS Editor, of FIELD & STREAM......."
"The Page Pooper was first made from the 7.62 NATO, which later became the commercial .308 Winchester. The .30 caliber case was necked down with a considerably sharper shoulder, leaving the body the original length. This resulted in a modern sharp shouldered case with a sufficiently long neck .........."
Now on to the cartridge originally mentioned in the first post of this thread -
From the same book, this time on p.314 -
.240 Page Souper Pooper
"This cartridge can best be described as another 'improved' version of the .244 Remington. It uses more or less the conventional shoulder angle of 28,degrees) with the accepted minimum body taper design. The case holds up to 10% more powder than the standard .244 Remington ..........."
As you can see, Page's "Souper" version was not based on the .308 Winchester case, but on the .244 Remington.
I had to dig into my old books to find the Ackley volumes just to prove a point
