98 rebarrel job

Spadone · January 22, 2001, 06:38 AM

I have a 98 large ring action. How do I go about setting the headspace? I was thinking about getting a .308 BBL.

George Stringer · January 22, 2001, 08:27 AM

Spadone, with a depth micrometer measure from the face of the receiver to the primary torque shoulder and then from the face of the receiver to the face of the closed bolt. The difference in these two measurements plus .001" is the distance your go gage should protrude from the chamber. I recommend you get Kuhnhausen's book on the Mausers before trying this project. George

George Stringer · January 22, 2001, 08:31 AM

Spadone, let me add to that. With a pre-threaded, short chambered barrel, assuming the shank length is correct for your particular action do the following: Disassemble the bolt. Install the barrel. Try closing the bolt body on a go gage. It should not close. With the correct chamber reamer, an extension, and T-handle, ream the chamber just a little at a time until the bolt body will close on the go gage with a very slight feel. It should lack at least a quarter inch from closing on a no-go gage. George

Spadone · January 22, 2001, 06:22 PM

Thanks for the info. Looks like I'll have to get the book.

January 22, 2001, 06:38 AM	#1
Spadone Member Join Date: July 4, 2000 Posts: 48	I have a 98 large ring action. How do I go about setting the headspace? I was thinking about getting a .308 BBL.

January 22, 2001, 08:27 AM	#2
George Stringer Staff Alumnus Join Date: October 12, 1998 Location: Earlington KY Posts: 2,299	Spadone, with a depth micrometer measure from the face of the receiver to the primary torque shoulder and then from the face of the receiver to the face of the closed bolt. The difference in these two measurements plus .001" is the distance your go gage should protrude from the chamber. I recommend you get Kuhnhausen's book on the Mausers before trying this project. George

January 22, 2001, 08:31 AM	#3
George Stringer Staff Alumnus Join Date: October 12, 1998 Location: Earlington KY Posts: 2,299	Spadone, let me add to that. With a pre-threaded, short chambered barrel, assuming the shank length is correct for your particular action do the following: Disassemble the bolt. Install the barrel. Try closing the bolt body on a go gage. It should not close. With the correct chamber reamer, an extension, and T-handle, ream the chamber just a little at a time until the bolt body will close on the go gage with a very slight feel. It should lack at least a quarter inch from closing on a no-go gage. George

January 22, 2001, 06:22 PM	#4
Spadone Member Join Date: July 4, 2000 Posts: 48	Thanks for the info. Looks like I'll have to get the book.