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Rifles, Reloading, Optics, Equipment
Reloading
264 WM heavy bolt lift
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<blockquote data-quote="bigedp51" data-source="post: 1184878" data-attributes="member: 28965"><p>MagnumManiac</p><p></p><p>I'm a rabid anti case greaser because it increases bolt thrust and can damage your rifles. And one thing I can tell you is the slight amount of lube left on the OPs case did not increase the chamber pressure. The only way lube can increase chamber pressure is if it prevents the case from expanding and when also squeezed in front of the bullet. </p><p></p><p>Hard bolt lift is caused by the case not springing back from the chamber walls and causing drag on the chamber walls. And this happens when you exceed the elastic limits of the brass at higher than normal pressures.</p><p></p><p>Military 7.62 cases are made thicker in the base and 5.56 cases are made harder to help the cases from sticking in the chamber. Meaning commercial cases vary in brass hardness and spring back rates and effect case sticking.</p><p></p><p>The OP changed components without reducing the powder charge and had hard bolt lift.............end of story.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1184878, member: 28965"] MagnumManiac I'm a rabid anti case greaser because it increases bolt thrust and can damage your rifles. And one thing I can tell you is the slight amount of lube left on the OPs case did not increase the chamber pressure. The only way lube can increase chamber pressure is if it prevents the case from expanding and when also squeezed in front of the bullet. Hard bolt lift is caused by the case not springing back from the chamber walls and causing drag on the chamber walls. And this happens when you exceed the elastic limits of the brass at higher than normal pressures. Military 7.62 cases are made thicker in the base and 5.56 cases are made harder to help the cases from sticking in the chamber. Meaning commercial cases vary in brass hardness and spring back rates and effect case sticking. The OP changed components without reducing the powder charge and had hard bolt lift.............end of story. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
264 WM heavy bolt lift
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