360 Buckhammer .. straight walled 358 diameter cartridge developed for states that have bottle neck cartridge restrictions… its housed in a Levergun… operates at 50,000 PSI vs 33,000 for tbe 35 Remington.. it tops the 35 Rem and is close to the 356 Winchester in performance.. that is true performance
I think that is 360 buckhammer, and I know is a straight walled case vs the bottleneck, and range is greater and more powerful than the old 35 Remington, or at least that is what the specs show