if you take all your 338 brass to a machinist, have all the belts turned off, and the correct extractor groove cut, guess what you will have?
cases that when necked up to 9.3mm will be the same as the 9.3x64.
might just be easier to get a reamer for 338 necked up to 9.3 and chamber a new krieger or bartlein .
Interesting concept? But why would one want to remove the belt from a belted magnum case when making any quasi wildcat cartridge? Head space on the belt and not have to worry about the shoulder and neck size only for many firings? Although, I guess the belted case can get weakened above the belt after awhile? And, why were belted cases created anyway? The older cartridge cases weren’t. This is off topic, but I just thought of these questions.