I'm attempting to buy a receiver sight for Mauser 98k. Are bridges of "large" and "small" ring Mauser receivers the same. Only receiver rings and, perhaps, receiver overall lengths change. Receiver sight bases for 98k and FN small ring Mausers use same receiver sight bases?

i think this link will answer all your questions
https://forums.accuratereloadi...=971105007#971105007

I just went through each post of your detailed thread. Unfortunately there is no information pertaining to Mauser and Mauser-style turn bolt actions' receiver bridges. I believe I found the information I needed by way of what is the meaning/translation of Redfield and Lyman receiver sight model naming. If this method solves my problem, I still will not know anything about dimensions of receiver bridges. But knowledge about receiver bridges was wanted only to identify what receiver sight would fit my receiver's bridge.

You might want to post this in the GUNSMITHING section. I'm sure DPCD can answer your question as well as others.

I believe when they say small and/or large ring Mausers they are referring to the front receiver ring and in which case you are only concerned with the curve of the rear receiver ring as the receiver sight is height adjustable.

Hip

All you had to do is ask me; not that I know anything about Mausers, but I have 200 of them, left.
Ok, the bridges on all 98 pattern military Mausers are the same, and as Hip said, only the rings (front) are different.
Now, an FN small ring? I have to see that one.
When the term 98k is used, that means the German Kar98k rifle made from 1934 to 1945. No other rifle is called a Kar98k.
So, to make sure, give use the markings on your Mauser.
Yes, a gunsmithing topic for sure.