7.91x57 v 7.92x57 v 8mm Mauser

[Mark 1911]

7.91x57 v 7.92x57 v 8mm Mauser Compatible or No?

Restoring a Danzig 1914 GEW 98. Barrel is stamped 7.91, but everything I've read says this rifle was chambered in 7.92x57mm.

From what I've read, the 7.92x57mm is the same cartridge as 8mm Mauser. But then why the 7.91 stamp on the barrel?

Tried Google, not finding an answer. Sure don't want to put the wrong ammo in it.

 

[indy1919a4]

7.91, 7.92, 8x57, 8x57IS, or 8x57JS is 8mm mauser[FONT=verdana, geneva, lucida, lucida grande, arial, helvetica, sans-serif] it is all the same.. Also you can see 7.90 & 7.93 [/FONT]

[FONT=verdana, geneva, lucida, lucida grande, arial, helvetica, sans-serif]But in early unconverted mauser arms always a good idea to slug the barrel to see if it is .318 or .323. My bet on the rife you stated its in .323.

But there has been a lot of crazy things done to that rifle over the years, you never know till you look.. [/FONT]

 

[Mark 1911]

7.91, 7.92, 8x57, 8x57IS, or 8x57JS is 8mm mauser[FONT=verdana, geneva, lucida, lucida grande, arial, helvetica, sans-serif] it is all the same.. Also you can see 7.90 & 7.93 [/FONT]

[FONT=verdana, geneva, lucida, lucida grande, arial, helvetica, sans-serif]But in early unconverted mauser arms always a good idea to slug the barrel to see if it is .318 or .323. My bet on the rife you stated its in .323.

But there has been a lot of crazy things done to that rifle over the years, you never know till you look.. [/FONT]

Very helpful post sir.

Are the slugs you mentioned something I can order from Brownells or similar? Not familiar with this tool/process.

 

[Gary119]

Try these

The K98k Forum

https://en.wikipedia.org/wiki/7.92×57mm_Mauser

https://www.google.com/search?rlz=1...XyqIMKHUBRB5UQ4lYIKCgA&biw=931&bih=1048&dpr=1

The 7.92x57 round has a interesting history.

 

[indy1919a4]

Very helpful post sir.

Are the slugs you mentioned something I can order from Brownells or similar? Not familiar with this tool/process.

Oh Heck I am sure most of the tools are in your house already..

One of a 1000 barrel slug youtubes out there to help.. I like this rascal because he does not use fancy tools..

https://www.youtube.com/watch?v=ErFaJlUVs1Y