If I wanted a scope mounted I would take it to a professional gunsmith and have him drill and tap it for me.
This is not an easy job, and it should not be done by yourself.
This is mostly a collector's gun, and who knows how much it has been fired?
I am guessing someone brought it back from Germany as a WW2 war trophy.
So before you set it up for hunting, take it to the range, and shoot a few groups at 50 yards with the iron sights already on it, to see how it does. Whatever is your spread at 50 yds it will be twice that at 100, and four times at 200. If the groups are not on an 8 inch pie plate, it won't be very good for hunting. You need to find that out first.
If the groups are touching at 50 yards, then you truly have a gem.
Once you know what the groups look like, then you can pick out a scope and bases and rings for it. Show the gunsmith the scope, bases, and rings you plan to get, and he can confirm for you whether those will mesh with the rifle. You may need high bases to get enough clearance for the bolt to operate. Mausers are known for their large rotations and so a high mounted scop on a Mauser is common.
Then once you actually have the scope, the bases, and the rings, you can give all that to the smith and he can drill, tap, and mount it for you, drilling it to the right position.
The Mauser's are the guns most desired by the collectors because they were the start of the bolt action revolution, which Mauser himself improved upon and patented, in this particular design.
The 1903 Springfield was basically a copy job based on it.
My own favorite rifle, the Remington 700 is based on them as well.
This was ultra high technology as of the turn of the 1900s, and it has never been surpassed in accuracy by any other design. Hence it is popular now as a hunting and sharpshooting platform, when first cold shot precision is the most important thing.
Last edited by Shoobee; 05-30-2012 at 06:16 PM.