Originally Posted by bangeye
I am sort of with kenster99 on this one but if you have done the calculations I'll take your word for the extra case capacity. I guess my question would be why? If you want more capacity than the 7x57 just get a .280 Remington and save a lot of messing about.
I could just use my 7x61 S&H. But that is not what I am asking. It would be a 7x57, but not a 7x57 Mauser. Does this cartridge already exist, and if so, what is it called?