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Rifles, Reloading, Optics, Equipment
Reloading
Carbon Removal
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<blockquote data-quote="The Hock" data-source="post: 1897231" data-attributes="member: 8986"><p>If it were true that the marks are from reaming marks not lapped out then it should follow that only the lands would have the ridges. From the pictures both the lands and grooves have the latitudinal ridges. I have seen the same marks on inexpensive handgun barrels too. That leads me to believe it has something to do with cost cutting and something left out in the rifling process. It could be lack of lapping but the ridges would have then to be transferred to the grooves by the button as it rifled the barrel. Whether or not that is possible requires knowledge of the rifling process I do not possess but knowing machine processes as I do it seems implausible.</p></blockquote><p></p>
[QUOTE="The Hock, post: 1897231, member: 8986"] If it were true that the marks are from reaming marks not lapped out then it should follow that only the lands would have the ridges. From the pictures both the lands and grooves have the latitudinal ridges. I have seen the same marks on inexpensive handgun barrels too. That leads me to believe it has something to do with cost cutting and something left out in the rifling process. It could be lack of lapping but the ridges would have then to be transferred to the grooves by the button as it rifled the barrel. Whether or not that is possible requires knowledge of the rifling process I do not possess but knowing machine processes as I do it seems implausible. [/QUOTE]
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