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Truing an action is a valuable aid to accuracy and long life. It involves differing things for different actions. The usual result is an action where the lugs bear evenly on the locking recesses. The locking recesses are square to the front of the receiver ring(thus the shoulder on the barrel) and the front of the receiver ring is square to the centerline of the action. The receiver ring threads are uniform and the action is not twisted or warped. On some rifles especially if mechanical triggers are used the bottom of the action may be leveled and smoothed. This can lead to a rifle which lasts longer and shoots better as stresses are as equal as possible..
 

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Discussion Starter #3
So do you mean that...

the term "blueprinting an action" is the same thing as trueing up all the mating surfaces?
If so,then it makes sense and I understand now.
Thank you,Jeff. :grin:
 

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It involves the mating and load bearing areas of the action. One doesn't really see the improvement but it is there. Takes a lot of set up and machine time, but worth the money. In some cases it is nearly mandatory..
 
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