Help with Identification

[Rotten]

Chunks of wood missing can be fixed.
By cutting it deeper and squaring it out and then fitting in a square piece of wood and bedding it. Then cutting and fitting the receiver back in.
But I can understand just wanting to buy a new stock. Just letting people know that breaks like that can be repaired.
I've also drilled out the 2 pieces and bedded in a length of all thread rod that you would never see after its epoxyed back together. Sorry just bored and rambling on while at work.

 

[tomcat818]

I am not finding as much info on the internet as I would have hoped, so I am reaching out for any answers I can find.

My elderly father in law has decided it is time to let go of his rifles, The one I am most interested in appears to be a 1931 Mexican Mauser, from the "Fabricia Nacidnal De Armas Mexico DF 1931" stamp on the top of the receiver.
My father in law thought it was in .308, but the long action magazine says its something else….I was thinking 30-06 but how can I be sure it is not some other caliber??
I am hoping someone can help me decipher what the other markings mean, just forward of the receiver is an "A" with a star above it & below the A is a Crown & inside the crown are the letters E, L, G with a star below.
The serial no is 12793 . I don't believe the stock is original & am wondering if the curious joggle in the barrel a couple of inches from the fore end is where the original band could have been?? Or is this even the original barrel?
It has a Lyman fully adjustable rear peep sight & a ramp front sight. The barrel has lots of blue left , no pitting or rust on the outside.
The stock is in good condition except for a missing chunk of wood just behind the bolt & a couple of significant cracks extending from the void…
I would like to change the stock. I have read that a rifle like this is patterned after a 1910 Mauser, but unable to determine if this one is one.
So my questions are:

How can I determine if this one is a 1910 clone that or it something else?
Where is the best source for a new stock?
There are no markings indicating caliber, how can I determine what caliber?
Also , Is it safe to fire modern ammunition , I would assume so, but want to be sure.

Any help or suggestions are greatly appreciated, Thank you in advance.

The barrel has a Belgium proof mark designated in this reference document

https://www.nramuseum.org/media/940944/proofmarks.pdf

Here is a good summary article on Mauser rifles which IMO indicate possibly a Mauser model 95 if it has a two lug bolt or a 98 if 3 lugs (also cocks on opening where the 95 cocks on closing) both models were sold in bulk to Mexico. I think you are on the right track with 7X57mm.

An Official Journal Of The NRA | Mauser: The Rifle That Made Good

Combining inventive genius with shrewd sales ability, the Mauser brothers, Paul and Wilhelm launched one of the world’s most famous small arms dynasties.

www.americanrifleman.org

This rifle may have been made by Frabrique Nationale in Belgium since the barrel was made there sold to Mexico and re-stamped. I think the original stock would have had a wood cap over the larger portion of the barrel.