My theory is that your Schmidt-Rubin was made into a lamp and the 'barrel holes' once held the wire frame for the shade.

People re-purposed '$15 guns' back in the 1950's & 60's. "Odd European Ammo" was hard to get and prohibitively expensive!

IMHO - No Swiss would have done those barrel holes!

Is the 'name plate' a piece of DYNACO label maker tape or something else? Is it E.L.ZEA or ELZEA? The "+" or 'cross' at the front and end could be Swiss inspired and done by a Swiss owner.

CAUTION - make sure the chamber was not altered to .308; some vendors did some sketchy things to sell Schmidt-Rubin rifles.

Believe it or not, there was a time when Swiss rifles and bayonets were common and demand & interest was low.