Identifying Mauser sporter type and year of manufacture

[Swedarms]

Hello,

I am a new member to this forum, although I have been browsing and looking for some time.
I must say, I am quite impressed with the amount of knowledge that the members here represent.
The threads and posts regarding Mauser identifications have certainly made me wiser, but I am yet to identify the year of manufacture and type (A or B) of my Oberndorf Mauser.

I inherited the rifle from my grandfather who, as I can remember, has had it forever.

It is in caliber 8x60, but along with the rifle came a box of Norma 8X57, which apparently my grandfather used. I testfired the rifle with it withour issues.
The barrel has an S engraved, as well as a Y and F.

I have a grasp of the crowned B, G and U stamp, but I am wondering about the letter stamps on the barrel, as well as the letters Z, W V and small T on the receiver.
Also, there is a marking above the "7,85" marking which I cannot identify, as well as the meaning of the crown above the 8 in the "8,1" marking.

I would like your help in further identifying the rifle. A rough estimate (on the European market) of its worth would be interesting as well.

The rifle is in fair condition, apart from a poor scope base job and some scratches. The original stock has had some horrible job done to it, with a comb rise composed of a wholly different type of wood and poor fitting.
I am looking to restore the rifle. It mainly needs some refinish and, above all, a new stock. Any tips on where to find a suitable stock would be helpful.
EDIT: The rifle has leaf rear sights (100/200/300) and, what used to be, a silvery bead front sight. It has a single, non adjustable, trigger. It also has a simple lever-release bottom plate.

I am almost embarrassed to post a picture of the rifle in its whole, because of the stock, but will do so later this week when I have assembled it again.20190122_013017.jpg20190122_013415.jpgn.

Any information will be greatly appreciated. If you need a better picture of any marking, please ask.

Thank you

/Isak

[Axel E]

The serial number dates your rifle to 1930 – 31. Ch25 is the Mauser factory code for the barrel steel charge. Bore/land diameter of the barrel 7.85 mm, groove diameter 8.1 mm, rifling twist rate one turn in 240 mm. 156.14 is the gauge number for the bore diameter. For reasons unknown Mauser marked these old-fashioned gauge numbers on their barrels til WW2. The other marks and letters are worker's marks of the Oberndorf factory. As these were factory internal inspection marks they are unidentifyable now.
As you describe the condition as "fair" only, stock beyond repair, finish worn, drilled and tapped for so-so scope bases, value here in Germany would be about Euro 300.-

[mike ford]

Swedarms,
The scope mount bases on the rifle seem to be Weaver, which are often used, because they are efficient and economical. As a result of this common use, "Weaver spacing" is frequently used for screw spacing in many other less " economical", but more highly regarded mounts. You should be able to replace the Weaver mounts with some that are acceptable to you. At the worst, you should only have to move one hole. There are craftsmen that can repair your stock by removing and replacing the mismatching wood in a manner that would be virtually undetectable. You didn't show a photo of the bolt handle. If it has not been replaced/forged/or ground to clear a telescope, I recommend highly that you don't do so now, choosing "High" rings instead. I wouldn't be too concerned about "cheek weld" in a hunting situation . The bluing seems acceptable from the photos. These are only my opinions.
Mike

[rgsiii]

If the ammunition your grandfather used is truly 8x57 and you fire it in the 8x60, the cases will fire form and will not look the same. How do I know this? I bought an "8x57JS" shot it with no apparent problem, then looked at the fired cases. My accuracy markedly improved with the right cartridge.

[mike ford]

Swedearms,
The difference between 8x57 and 8x60 is more than just the 3mm difference in case length, the headspace is also different, as indicated by rgsiii. I believe you can find PRVI brand 8x60 ammo at Graf's. Handloading would be the same as other cartridges. Graf & Son shows it at 30.99/20, and Buffalo Arms has their loads at 54.09/20.
Mike