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Rifles, Reloading, Optics, Equipment
Gunsmithing
Base screws sheared off
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<blockquote data-quote="ntsqd" data-source="post: 2318552" data-attributes="member: 93138"><p>If you 'ring' two high quality gauge blocks together (basically slide them together) you can not pull them apart. You have to slide them back apart, and it isn't always easy to do that. The lesson here is that two very smooth surfaces that match each other exactly (like you get when bedding a base to an action) do not need to be roughed up. It does help that both gauge blocks are made from the same material, however it is not an absolute requirement that they be for this to happen. The biggest problem is that #6 screws are just too small for some applications. Their max torque does not generate enough clamp load for the shearing forces involved. Even #8 screws do not have enough shear strength for the forces involved, but they can generate enough clamp loading of the base to the action so that the screws will never see a shear loading.</p><p></p><p>Leave the action finish alone, bed the base, and torque quality screws into place with Lock-tite 243 (it's more tolerant of contaminants than 242).</p></blockquote><p></p>
[QUOTE="ntsqd, post: 2318552, member: 93138"] If you 'ring' two high quality gauge blocks together (basically slide them together) you can not pull them apart. You have to slide them back apart, and it isn't always easy to do that. The lesson here is that two very smooth surfaces that match each other exactly (like you get when bedding a base to an action) do not need to be roughed up. It does help that both gauge blocks are made from the same material, however it is not an absolute requirement that they be for this to happen. The biggest problem is that #6 screws are just too small for some applications. Their max torque does not generate enough clamp load for the shearing forces involved. Even #8 screws do not have enough shear strength for the forces involved, but they can generate enough clamp loading of the base to the action so that the screws will never see a shear loading. Leave the action finish alone, bed the base, and torque quality screws into place with Lock-tite 243 (it's more tolerant of contaminants than 242). [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Base screws sheared off
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