That appears to be a CG80. A pretty rare Swedish FSR and 300m match rifle here in the states. It was the next iteration of the CG63. I don’t believe any were chambered in 308.
I think you are right. What I can see of the stock looks like what is shown at these links.
The rise and fall of the CG80.
Swedish Military Rifles 1963 - 1989
I had never heard of these versions of the M1896 Mauser. I do remember seeing pictures of M96 rifles that were converted to 308Win, and thought this was one of them. Even so, these were still built on Military small ring actions, I have no idea if they picked WW2 actions over earlier actions, but it sure shows what happens when a case head blows in one of the things.
And let no one think that a reloader can't push the pressures on a 6.5 X 55 case well above the original service load and set back the receiver seats, think again:
Cautions on Swedish Mauser actions converted to .30-06, .270. etc.
The Kimber's suffered from setback more from excess headspacing than anything else. they were hastily cobbled together rifles meant to maximize profits and many were down right dangerous.
I worked on four or five Kimber sporters last year in 6.5x55. They all had excess headspace. Seems barrels were simply reprofiled and screwed on. Several had the top lug contacting the breech face. Hard to check headsace under those conditions.
There is a whole bunch of Swedish Mauser worship, and reverence for
"Swedish Steel", (similar to the worship of
"German Technology"). But you know, vacuum tube technology was just being invented in WW1, and this is WW2 vacuum tube technology.
And regardless of what you think about
Swedish Steel or G
erman Technology, 1918 manufacturing technology is still pre vacuum tube technology, and WW2 manufacturing technology is still vacuum tube technology. People understand the difference between 2G, 3G, 4G technology on their phones, and if someone was to praise to high heaven 2G technology, the group would recognize that person as ignorant. But, when it comes to technological discussions from 1900 to 1940, everyone assumes the Kaiser had a 4G cell phone.