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Rifles, Reloading, Optics, Equipment
Gunsmithing
Does slop between barrel and action threads affect accuracy?
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<blockquote data-quote="Alex Wheeler" data-source="post: 1790350" data-attributes="member: 101859"><p>If you understand a thread joint, you will realize that only one face of a thread is engaged. The back side has clearance. It has to. Clearance is clearance, if its .001 or .005 it doesnt matter for this application. A loose thread, even a very loose thread will not harm accuracy. A tight thread on an action thats not perfect will. I have handled quite a few record setting barrels, not one was fitted tightly. My advice is error on the loose side. In the past many things were tightened up in rifle building, because tighter has to be better. The crank on fit used to be popular, fitted necks, bolt dimensions, chamber specs, among other things. Much of that has gone the way of the dinosaur as testing proved it was the wrong direction. You want some room in a thread joint to allow the shoulders to mate without any bind. You can feel it when its right. Many wont fit up like that with a snug thread. After its torqued the barrel doesnt move.</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 1790350, member: 101859"] If you understand a thread joint, you will realize that only one face of a thread is engaged. The back side has clearance. It has to. Clearance is clearance, if its .001 or .005 it doesnt matter for this application. A loose thread, even a very loose thread will not harm accuracy. A tight thread on an action thats not perfect will. I have handled quite a few record setting barrels, not one was fitted tightly. My advice is error on the loose side. In the past many things were tightened up in rifle building, because tighter has to be better. The crank on fit used to be popular, fitted necks, bolt dimensions, chamber specs, among other things. Much of that has gone the way of the dinosaur as testing proved it was the wrong direction. You want some room in a thread joint to allow the shoulders to mate without any bind. You can feel it when its right. Many wont fit up like that with a snug thread. After its torqued the barrel doesnt move. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Does slop between barrel and action threads affect accuracy?
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