Is this for a Magnum Mauser?

PME 1083c

Perhaps a 1088C

Any ways

1 is standard M98

0 is standard depth

8 is 375 H&H

I do not recall using a 3 for the guard bow.
8 is a magnum bow size

C means the bow is silver soldered to the frame

J Wisner

sorry I was wrong, its a 1078c, the opening is longer than a 1909 . the follower is MF410

Not a 375 H&H

It is a 416 Rem caliber

JW

To make it very clear.

This Guard fits a STANDARD Mauser 98 receiver.

Will not fit a FN 375 receiver, or a Obendorf Magnum receiver

Modifications to the bolt stop, rear of the receiver, rails and feed ramp will be needed.
Many times depending on make of the receiver Reheat treatment suggested

The inside magazine length is 3.70"

Calibers that would fit or work well are
7mm STW
7mm x 300 WBY
300 Win Mag, would be able to seat out the bullets
300 WBY
340 WBY
375 WBY
416 Rem Mag
458 Lott

JW