Having acquired my MSch M 1903 Takedown, a rifle in pretty nice condition considering it's 1922 build heritage, I've been chasing around to find the right scope mount system. This done and while thoroughly investigating the rifle and it's condition, I now realise I need to re-barrel it.

I feel I should do this as a priority before I go any further. Now, I believe I know where there are some new 6.5x54MSch barrels...been sitting around for quite some time though, so condition has to be checked.
But, should I opt for the same cartridge/calibre or change to say..6.5x55 SE or 7x57/.275 Rigby?

I'm inclined to go for exactly the same as original...what do you other guys think please?
Cheers, deeangeo