6.5X55 Swedish?
The case looks slightly bulged but the Swede case is normally a hair larger at the base than a 30-06 or comparable Mauser case.
Maybe 7.5X54 French?
There more 7.5 French MAS autoloaders out there than the 6.5 Lungman autoloaders, but both rounds have been used with autoloaders.
PS
Theres the 7.5X55 Swiss, and while not commonly available there are Swiss semi auto rifles in that chambering.
Last edited by Rainbow Demon; February 16, 2013 at 06:10 PM.
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