300 mag bolt face calibers?

[David L]

I have a savage in 300 mag with a clip lenght of 3.5 in
I would like to change the barrel in à new caliber 30 and over.
What caliber would be ok to only swap à new barrel without altering the bolt face?
Thanks!

 

[antiqueguy]

you could go with just about any belted magnum cartridge most should fit you're magazine