Does any one know what the length of the shell case and oal loaded. Whats a good power and load. Rich

Would that be the same as a 25-08?

Goat yes 25-308

I suspect any powder suitable for the .260 Rem or 7-08 should work fine in the 25 Souper.Was this Warren Page's creation? I know he had a lot to do with the .243 developement....................Harold

I've used h414 and imr4831 in mine.