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Rifles, Reloading, Optics, Equipment
Reloading
Help determining actual incipient head case seperation signs
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<blockquote data-quote="bigedp51" data-source="post: 1468888" data-attributes="member: 28965"><p>You have to separate neck sizing from full length resizing and how many firings it takes to fit the chamber.</p><p></p><p>When you full length resize the case grows in length as it is squeezed and you can make the case longer than the chamber.</p><p></p><p>This is the vary reason with Redding competition shell holders they tell you to start with the +.010 and work down.</p><p></p><p>The illustration below shows the case shoulder being squeezed forward and then being pushed back. Meaning when full length resizing the vast majority of the time the case only needs to be fired once.</p><p></p><p><img src="https://i.imgur.com/wm05ArY.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Before the Redding competition shell holders we used feeler gauges and adjusted the die downward until the case chambered freely. And I'm sure there are reloaders out there who remember doing this and not being able to close the bolt until thinner feeler gauges were used.</p><p></p><p><img src="https://i.imgur.com/7FfXhJ7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>And I'm also sure there are people out there who used a full length die to partially full length resize the cases because they didn't have a neck sizing die. And know the case body was not reduced in diameter enough to squeeze the shoulder forward.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1468888, member: 28965"] You have to separate neck sizing from full length resizing and how many firings it takes to fit the chamber. When you full length resize the case grows in length as it is squeezed and you can make the case longer than the chamber. This is the vary reason with Redding competition shell holders they tell you to start with the +.010 and work down. The illustration below shows the case shoulder being squeezed forward and then being pushed back. Meaning when full length resizing the vast majority of the time the case only needs to be fired once. [IMG]https://i.imgur.com/wm05ArY.gif[/IMG] Before the Redding competition shell holders we used feeler gauges and adjusted the die downward until the case chambered freely. And I'm sure there are reloaders out there who remember doing this and not being able to close the bolt until thinner feeler gauges were used. [IMG]https://i.imgur.com/7FfXhJ7.jpg[/IMG] And I'm also sure there are people out there who used a full length die to partially full length resize the cases because they didn't have a neck sizing die. And know the case body was not reduced in diameter enough to squeeze the shoulder forward. [/QUOTE]
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Reloading
Help determining actual incipient head case seperation signs
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