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Rifles, Reloading, Optics, Equipment
Reloading
How do you straighten runout?
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<blockquote data-quote="Dgutter" data-source="post: 492696" data-attributes="member: 32130"><p>Good point, I shoot a Savage bolt action which I have been reloading for. It's a factory rifle and essentially has not been altered in regards to action or barrel. I guess I may have a slight misconception as to what happens the moment the firing pin strikes the primer. Let's see if I can try to explain my thought process and anyone feel free to correct me as this is quite educational for me. K here it goes....</p><p>Once the firing pin strikes the primer, the primer ignites thus setting off the powder within the case. The pressure within the case begins to increase and as a result the case begins to expand. The bullet is then exits the cartridge and engages the L&Gs. The pressure inside the case and space behind the bullet increases at such a rate that the case is pushed back against the bolt face and the case walls engage the chamber creating a seal. The increasing pressure following sends the bullet down the bore. Once the bullet exits the pressure instantly drops and the case slightly retract due to the modulus of elasticity of the brass. </p><p>So from my thinking the bullet would actually leave the case before the case is seated firmly against the bolt face. Is this true or are my mechanics off? I feel the only way it could seat firmly against the bolt face before the bullet leaves the case is if the bullet were seated against the lands??? yes/no/maybe so???</p><p></p><p>Please anyone feel free to jump in and correct me. </p><p>BTW if you feel that this should be its own thread let me know and I would be happy to move it.</p></blockquote><p></p>
[QUOTE="Dgutter, post: 492696, member: 32130"] Good point, I shoot a Savage bolt action which I have been reloading for. It's a factory rifle and essentially has not been altered in regards to action or barrel. I guess I may have a slight misconception as to what happens the moment the firing pin strikes the primer. Let's see if I can try to explain my thought process and anyone feel free to correct me as this is quite educational for me. K here it goes.... Once the firing pin strikes the primer, the primer ignites thus setting off the powder within the case. The pressure within the case begins to increase and as a result the case begins to expand. The bullet is then exits the cartridge and engages the L&Gs. The pressure inside the case and space behind the bullet increases at such a rate that the case is pushed back against the bolt face and the case walls engage the chamber creating a seal. The increasing pressure following sends the bullet down the bore. Once the bullet exits the pressure instantly drops and the case slightly retract due to the modulus of elasticity of the brass. So from my thinking the bullet would actually leave the case before the case is seated firmly against the bolt face. Is this true or are my mechanics off? I feel the only way it could seat firmly against the bolt face before the bullet leaves the case is if the bullet were seated against the lands??? yes/no/maybe so??? Please anyone feel free to jump in and correct me. BTW if you feel that this should be its own thread let me know and I would be happy to move it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How do you straighten runout?
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