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Rifles, Reloading, Optics, Equipment
Gunsmithing
Lapping a Barrel?
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<blockquote data-quote="Bullet bumper" data-source="post: 508248" data-attributes="member: 17844"><p>That is not a real good way to lapp a barrel. The lapping slug is way too short and if you have to remove it from the bore to load it then you may have lost it's correct groove position. A better way is wrap some tape around a cleaning rod just below the cleaning jag thread so that it will just slip into the bore and seal the bore. Put an old cleaning jag on the rod a smaller caliber than the bore is good. Insert the rod in the bore from the chamber end. Stop the jag about 1/2 inch from inside the muzzle . Then melt up some wheel weights or other fairly hard lead alloy and poor it into the end of the barrel but not let it overflow the muzzle end . Let it cool. Then push the rod up the barrel untill the cast lapp is halfway out the muzzle . Then load it with lapping paste and pull it back and forth but never letting it come out of the bore. Lapp less at the muzzle end than the chamber end. Don't overdo it or the barrel could be ruined.</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 508248, member: 17844"] That is not a real good way to lapp a barrel. The lapping slug is way too short and if you have to remove it from the bore to load it then you may have lost it's correct groove position. A better way is wrap some tape around a cleaning rod just below the cleaning jag thread so that it will just slip into the bore and seal the bore. Put an old cleaning jag on the rod a smaller caliber than the bore is good. Insert the rod in the bore from the chamber end. Stop the jag about 1/2 inch from inside the muzzle . Then melt up some wheel weights or other fairly hard lead alloy and poor it into the end of the barrel but not let it overflow the muzzle end . Let it cool. Then push the rod up the barrel untill the cast lapp is halfway out the muzzle . Then load it with lapping paste and pull it back and forth but never letting it come out of the bore. Lapp less at the muzzle end than the chamber end. Don't overdo it or the barrel could be ruined. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Lapping a Barrel?
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