Originally Posted by sharps4590
The 25-35 is rated at 44,000 PSI or 37,000 CUP by SAAMI. (...)
I couldn't compare it to CIP specifications because all my searches turned up for 6.5 X 52R was the Carcano cartridge. Certainly the specs. are out there, I just don't know how to find them.

CIP specs for the 6,5x52R (in English language):
https://bobp.cip-bobp.org/uploads/tdcc/tab-ii/tabiical-en-page14.pdf
So, that's 2450 bar Pmax. Projectile max diameter: 6,58 mm.

CIP specs for the .25-35 Win (in English language):
https://bobp.cip-bobp.org/uploads/tdcc/tab-ii/25-35-win-220214-en.pdf
So, that's 3050 bar Pmax. Projectile max diameter: 6,55 mm.

Carcano