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Rifles, Reloading, Optics, Equipment
Gunsmithing
Lapping a Barrel?
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<blockquote data-quote="J E Custom" data-source="post: 508269" data-attributes="member: 2736"><p>Lapping a barrel correctly is almost a art form because there are so many ways to screw one </p><p>up that it is not recommended unless you realy know what you are doing.</p><p></p><p>In your case you are trying to save a barrel that was fed a steady diet of corrosive ammo.(Ammo</p><p>was corrosive until 1953 to 1955) so it is probably pitted as the others have said.</p><p></p><p>There are many reasons that the rifle may not shoot and the barrel could be one of them</p><p>but stock to action/barrel fit may be another.</p><p></p><p>The bore scope is almost a must in these situations because looking down a barrel with a bore </p><p>light normally only tels you that it is clean or dirty, The bore scope looks at the bore 90o to</p><p>the rifling and will give a much better view of the condition of the barrel.</p><p></p><p>There is another way to bring an old barrel around and that's with a bullet swage that can</p><p>make over sized bullets. (.308 to .309) I have seen some match rifles that had been shot</p><p>thousands of times come alive when fed over size bullets.</p><p></p><p>Also with very little rifling left in a barrel sometimes the lighter bullets work better, so try</p><p>a much lighter bullet. </p><p></p><p>I would not clean the barrel any more if it is pitted and let the copper fill in some of the pitting</p><p>and if there is enough rifling left it may do better.</p><p></p><p>Just some things to try.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 508269, member: 2736"] Lapping a barrel correctly is almost a art form because there are so many ways to screw one up that it is not recommended unless you realy know what you are doing. In your case you are trying to save a barrel that was fed a steady diet of corrosive ammo.(Ammo was corrosive until 1953 to 1955) so it is probably pitted as the others have said. There are many reasons that the rifle may not shoot and the barrel could be one of them but stock to action/barrel fit may be another. The bore scope is almost a must in these situations because looking down a barrel with a bore light normally only tels you that it is clean or dirty, The bore scope looks at the bore 90o to the rifling and will give a much better view of the condition of the barrel. There is another way to bring an old barrel around and that's with a bullet swage that can make over sized bullets. (.308 to .309) I have seen some match rifles that had been shot thousands of times come alive when fed over size bullets. Also with very little rifling left in a barrel sometimes the lighter bullets work better, so try a much lighter bullet. I would not clean the barrel any more if it is pitted and let the copper fill in some of the pitting and if there is enough rifling left it may do better. Just some things to try. J E CUSTOM [/QUOTE]
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Lapping a Barrel?
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