Blueprinting, or truing a rifle action ensures the receiver face, threads, lugs, bolt lugs and bolt face are square to the center line of the receiver. As part of the blueprinting process for bolt action rifles, the bolt needs to be squared. In addition to squaring the rear faces of the bolt lugs, the front surfaces of the lugs, the bolt nose and the bolt face can be trued as well. This article will focus on the use of a La Bounty bolt fixture the techniques we used to square some of the bolt surfaces. Our complete blueprinting article can be found here.
Prior to beginning, we ordered the following items from Brownells for this article:
- La Bounty bolt fixture (521-100-000)
- 3/8″ High-speed steel turning kit (080-000-835)
- High-speed steel 35 degree profile kit (080-000-836)
- Dial indicator (749-007-761)
For this project we will be truing the bolt on a Remington 700 short action. The bolt had been fluted by Kampfeld Custom.
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All lathe work is conducted on a Grizzly 4003G lathe.
It should be noted that while the bolt face could have been trued while the bolt is still set up in the fixture, we elected to use a Manson kit.
For more information on the complete action blueprinting process, see our article here.