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Rifles, Reloading, Optics, Equipment
Reloading
Brass Case Head Separation after 6 firings
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<blockquote data-quote="QuietTexan" data-source="post: 2534931" data-attributes="member: 116181"><p>Not sure where you're getting this, no one is talking about bolt fit in the action past the lugs? Other than you saying that Defiance lugs can get pounded so hard the charging handle takes on the bolt thrust apparently, that still sounds fishy to me.</p><p></p><p>I really don't understand what you're arguing here? It's a fact that the Savage floating bolt head allows forward and rearward movement separate from the bolt body - awesome for your bolt heads that they fit out of the box, that doesn't mean every Savage has come out tight and square. It's a two-piece design - there are multiple tolerances stacked up between the action lug recess and the bolt face. It's a design that several writers have touted as being better than a one-piece bolt design because they claim dynamic lug contact is better than fixed. I think that the one piece design is better because there are fewer interfaces by at least one - the fit between the two bolt head components. It's the same argument as Savage/Rem-age barrel nuts versus a shouldered barrel - two sets of threads versus one set and a hard shoulder.</p><p></p><p>Let's go back to what I said:</p><p></p><p>Either the face was dished from too many high pressure rounds, or wasn't cut square, or it didn't sit square on the second piece of the bolt head that contacted the lugs, or the lug contact itself was shifting under pressure. Any way you cut it, whatever was moving was moving inconsistently enough the bullet would move inconsistently in the neck to the point fireforming wasn't consistent when done trying to jam a bullet. Different shoulder measurements with everything else set the same. Changing to a false shoulder fit tight enough that whatever was moving couldn't overcome the crush fit of the brass case, end result was much more consistently formed cases. The new bolt face might have helped, but like you said Savage bolt faces don't tend to make a ton of difference.</p><p></p><p>This isn't insane fantasy talking about the bullet moving in the neck, there's a finite amount of grip a neck can put on a bullet, it's not challenging to set a bullet back into a case with an action.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2534931, member: 116181"] Not sure where you're getting this, no one is talking about bolt fit in the action past the lugs? Other than you saying that Defiance lugs can get pounded so hard the charging handle takes on the bolt thrust apparently, that still sounds fishy to me. I really don't understand what you're arguing here? It's a fact that the Savage floating bolt head allows forward and rearward movement separate from the bolt body - awesome for your bolt heads that they fit out of the box, that doesn't mean every Savage has come out tight and square. It's a two-piece design - there are multiple tolerances stacked up between the action lug recess and the bolt face. It's a design that several writers have touted as being better than a one-piece bolt design because they claim dynamic lug contact is better than fixed. I think that the one piece design is better because there are fewer interfaces by at least one - the fit between the two bolt head components. It's the same argument as Savage/Rem-age barrel nuts versus a shouldered barrel - two sets of threads versus one set and a hard shoulder. Let's go back to what I said: Either the face was dished from too many high pressure rounds, or wasn't cut square, or it didn't sit square on the second piece of the bolt head that contacted the lugs, or the lug contact itself was shifting under pressure. Any way you cut it, whatever was moving was moving inconsistently enough the bullet would move inconsistently in the neck to the point fireforming wasn't consistent when done trying to jam a bullet. Different shoulder measurements with everything else set the same. Changing to a false shoulder fit tight enough that whatever was moving couldn't overcome the crush fit of the brass case, end result was much more consistently formed cases. The new bolt face might have helped, but like you said Savage bolt faces don't tend to make a ton of difference. This isn't insane fantasy talking about the bullet moving in the neck, there's a finite amount of grip a neck can put on a bullet, it's not challenging to set a bullet back into a case with an action. [/QUOTE]
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Reloading
Brass Case Head Separation after 6 firings
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