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Rifles, Reloading, Optics, Equipment
7mm STW
Adding a brake
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<blockquote data-quote="J E Custom" data-source="post: 1036920" data-attributes="member: 2736"><p>Yes. If the barrel is set up true to the bore, and the threads are cut, the threads are also true to the bore. then after installing the brake and timing it (While the barrel is still set up true) the boring process will make the muzzle brake bore also true to the barrel bore because the threads may shift</p><p>and find there own center. boring after the brake is made up tight will assure that if there were any movement no matter how slight, the muzzle brake bore will be absolutely true to the rifle bore.</p><p></p><p>With good thread fits this is not really an issue as long as the rifle barrel was set up correctly and true to the bore center line before cutting the threads, and the muzzle brake is machined true to the </p><p>threads also. Boring the muzzle last is just more insurance that you have it as near perfect as possible.</p><p></p><p>No matter how accurate the muzzle brake is, it wont be centered if the rifle barrel is not set up right and cut true to the bore.</p><p></p><p>This is the reason that most smiths recommend a lathe for cutting the tenon and threads for brake installation.</p><p></p><p>If all work is performed correctly ordering a brake and installing by a competent gun smith will not be a problem. When I can, I still like to do all the work so I know the final Quality of the install.</p><p>With the cost of shipping and insurance this is not always practical though.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1036920, member: 2736"] Yes. If the barrel is set up true to the bore, and the threads are cut, the threads are also true to the bore. then after installing the brake and timing it (While the barrel is still set up true) the boring process will make the muzzle brake bore also true to the barrel bore because the threads may shift and find there own center. boring after the brake is made up tight will assure that if there were any movement no matter how slight, the muzzle brake bore will be absolutely true to the rifle bore. With good thread fits this is not really an issue as long as the rifle barrel was set up correctly and true to the bore center line before cutting the threads, and the muzzle brake is machined true to the threads also. Boring the muzzle last is just more insurance that you have it as near perfect as possible. No matter how accurate the muzzle brake is, it wont be centered if the rifle barrel is not set up right and cut true to the bore. This is the reason that most smiths recommend a lathe for cutting the tenon and threads for brake installation. If all work is performed correctly ordering a brake and installing by a competent gun smith will not be a problem. When I can, I still like to do all the work so I know the final Quality of the install. With the cost of shipping and insurance this is not always practical though. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
Adding a brake
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