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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder bump with Forster Bushing,Bump, neck sizing
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<blockquote data-quote="bigedp51" data-source="post: 1404380" data-attributes="member: 28965"><p>Before I had the Hornady cartridge case headspace gauge I would use feeler gauges to adjust the die downward. I would start with a .010 feeler gauge and work down with thinner gauges until the case would chamber freely without bolt closure resistance.</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>Now I just measure a fired case with the Hornady gauge and set the die for .001 to .002 shoulder bump for a bolt action.</p><p></p><p>Again chambers and dies vary in size and when the die is adjusted per the instructions the case shoulder will normally be bumped back more than .001 to .002. And small base dies will reduce the case diameter approximately .003 more than a standard die. And this same small base die will also push the shoulder back .003 more than a standard die. Meaning size the case to minimum SAAMI dimensions. "BUT" nothing is written in stone, I have a standard Lee .223 full length die that will reduce the case dimensions more than my RCBS small base die. And this same Lee die can push the shoulder back .007 if it contacts the shell holder.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1404380, member: 28965"] Before I had the Hornady cartridge case headspace gauge I would use feeler gauges to adjust the die downward. I would start with a .010 feeler gauge and work down with thinner gauges until the case would chamber freely without bolt closure resistance. [IMG]https://i.imgur.com/7FfXhJ7.jpg[/IMG] Now I just measure a fired case with the Hornady gauge and set the die for .001 to .002 shoulder bump for a bolt action. Again chambers and dies vary in size and when the die is adjusted per the instructions the case shoulder will normally be bumped back more than .001 to .002. And small base dies will reduce the case diameter approximately .003 more than a standard die. And this same small base die will also push the shoulder back .003 more than a standard die. Meaning size the case to minimum SAAMI dimensions. "BUT" nothing is written in stone, I have a standard Lee .223 full length die that will reduce the case dimensions more than my RCBS small base die. And this same Lee die can push the shoulder back .007 if it contacts the shell holder. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder bump with Forster Bushing,Bump, neck sizing
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