You will want to do a little research before you purchase a stock, as there are several variations on the mauser action. I went through the same research and verified that my custom 6.5x55 was built on a large ring model 98 mauser action. The web site that I used is no longer available, but it showed the correct measurements between the two large action screws under your receiver. My large ring 98 (I just measured it) has the screws approximately 7 7/8 inches apart at the centers. Hope this helps. Todd
Oh, and 2MuchGun is correct...you will need to verify if your bolt has been altered or is in original condition. Tod