Originally Posted by
Nandy
He is wanting to make a switch barrel out of his rifle. The head space on savage is set by screwing the barrel in the action with the gauge in the chamber and the bolt locked closed. Once that is set the barrel nut is tighten against the action and it is what keeps the barrel from moving. So if you can somehow can lock the barrel nut into the barrel after it has been properly measured then you dont need the gauges to set the head space every time you change your barrel. Rifles like the remington dont use the barrel nut, what the gunsmith does is to shave the barrel where it meets the action until the desire head space is achieved. The savage advantage is that the user dont need special machinery to fit a barrel since all it takes is to turn the barrel to the desire gap the locking it with the barrel....
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