Looking for more information on this rifle.

The barrel stamp is SA 2-29 so I would assume this means it was rebarreled with a barrel made in February 1929?

The receiver's serial number for it is 840,585 and from the information from multiple sources I've gathered that means it was manufactured in 1918 and that it's serial number is in the "safe" range [Above 800,000].

From the bolt in the last picture in the set I've posted, it shows the bolt but I cannot tell if it's a swept back bolt but from what I can see on the side of the stock where the bolt touches it, there's a faint white spot so I'm guessing it is a swept back bolt.

Also, from the looks of it, it has an original M1907 sling on it.

But as I stated, I'd like to know more about this rifle and I'd greatly appreciate some help from you guys.
Information
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