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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
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<blockquote data-quote="IdahoCTD" data-source="post: 824126" data-attributes="member: 13110"><p>It depends on how your smith is checking the bore to threads. Some barrels are like a jump rope inside. So while they are turned on centers in the middle of the barrel the bore is way off. With a barrel such as this the threads could be within a few thou to the bore but the bore is actually pointing in a different direction. I recently chambered a barrel and dialed in roughly a 1" section of the bore for straightness where the pilot of the reamer was to finish cutting the chamber. The crown end of the barrel was off .134" at 22" long and it was turned on centers at 27" long. A barrel like that could easily experience a bullet strike over the length of a silencer.</p></blockquote><p></p>
[QUOTE="IdahoCTD, post: 824126, member: 13110"] It depends on how your smith is checking the bore to threads. Some barrels are like a jump rope inside. So while they are turned on centers in the middle of the barrel the bore is way off. With a barrel such as this the threads could be within a few thou to the bore but the bore is actually pointing in a different direction. I recently chambered a barrel and dialed in roughly a 1" section of the bore for straightness where the pilot of the reamer was to finish cutting the chamber. The crown end of the barrel was off .134" at 22" long and it was turned on centers at 27" long. A barrel like that could easily experience a bullet strike over the length of a silencer. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
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