I know some importers had those rifles converted to .308 (7.62 NATO), but I don't know how. I am pretty sure they didn't rebarrel the guns (and sell them for $29!) and you can't just rechamber because the 7.5 Swiss chamber is already too big for the .308. They could have set the barrel back, but there are other tricks that are more problematical like a chamber sleeve, which I consider a bad idea.
Jim
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