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Rifles, Reloading, Optics, Equipment
Gunsmithing
Bolt handle
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<blockquote data-quote="Hired Gun" data-source="post: 553742" data-attributes="member: 1290"><p>It is completely normal for the bolt to move a bit on a production rifle. While cocked the end of the bolt is pinned to the top of the bolt bore. The top lug will not even be touching. When the sear is released the bolt drops. When the sear is released on a live round pressure from the pressurized chamber force the bolt back against the lugs. The more clearance in your bolt raceway the more your bolt can induce vibration that will reverberate all the way to the muzzle and can affect accuracy. Neck sized brass can help with this as they require a bit of force to close the bolt and this keeps the bolt resting on the lugs better and will help steady the bolt when the sear is released. </p><p></p><p>If your handle is lifting when the pin drops I would suspect the handle is touching something as the bolt drops and it is rocking the handle up at bit. If the handle is completly clear it could still rotate from just how the lugs and the rest of the bolt change position when it goes from cocked to relaxed after the pin drops. </p><p></p><p>When a rifle is blueprinted a lot of these tolerance are tightened up and this can be pretty much eliminated. Sleeving the bolt will eliminate the slop.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 553742, member: 1290"] It is completely normal for the bolt to move a bit on a production rifle. While cocked the end of the bolt is pinned to the top of the bolt bore. The top lug will not even be touching. When the sear is released the bolt drops. When the sear is released on a live round pressure from the pressurized chamber force the bolt back against the lugs. The more clearance in your bolt raceway the more your bolt can induce vibration that will reverberate all the way to the muzzle and can affect accuracy. Neck sized brass can help with this as they require a bit of force to close the bolt and this keeps the bolt resting on the lugs better and will help steady the bolt when the sear is released. If your handle is lifting when the pin drops I would suspect the handle is touching something as the bolt drops and it is rocking the handle up at bit. If the handle is completly clear it could still rotate from just how the lugs and the rest of the bolt change position when it goes from cocked to relaxed after the pin drops. When a rifle is blueprinted a lot of these tolerance are tightened up and this can be pretty much eliminated. Sleeving the bolt will eliminate the slop. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Bolt handle
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