Don't be too fast to "shoot" down a Mauser.
If you use an M-48, sometimes called a Yugo, you'll find it has a shorter receiver. The bolt is also shorter by about 1/8". They are pretty cheap to find at pawn shops, Numrichs, etc. You can sell the parts off of it on Ebay and just about get the receiver for free.
I screw on a solid scope mount,rail actually) across the top of the receiver to stiffen it. Works great. Mind you I would not put it against my Viper Drop-port, then again I didn't spend $1k on it either. The bolt face will have to be enlarged for the magnum cartridge
Other then that, make sure you square the shoulders, lap lugs,square the bolt face, tune your load, etc. you probably know the drill by now. I usually use a heavier barrel contour, #5 at least and often a #7. I've got 2 - 270's, a 7mm mag, & a .243 that all shoot 5 shot groups that are less then 3/4" at 100 yards on a regular basis. 1/2" is not unusual.
I also admit to having an ego, the Mauser action stands out like a '69 z-28 Camaro. Modern cars still can't outrace it, rarely out corner it,ignoring the gas mileage

and the car just looks good. For either one,I don't recall seeing a person looking at one without a smile on their face!
Holler if you need any help.
Good Luck!
Chris