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Rifles, Reloading, Optics, Equipment
Reloading
shoulder bump problem
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<blockquote data-quote="bigedp51" data-source="post: 1371241" data-attributes="member: 28965"><p>The problem with using feeler gauges is it can restrict the case movement in the shell holder. And if there are dings in the rim and extractor groove it can cause the case to tilt.</p><p></p><p>At AccurateShooter.com and other information websites they tell you to remover the shell holder retaining clip from the top of the ram and use a o-ring to hold it in place. This allows the shell holder to "float" giving the case more room to self center inside the die.</p><p></p><p>The dings on the rim and extractor groove can also cause the case to tilt on the down stroke of the ram and pull the case necks off center and induce runout.</p><p></p><p>This is where the Forster full length benchrest dies are heads above the rest. The Forster high mounted floating expander enters the case neck when the case neck is still held and centered in the neck of the die. And even if you have chewed up case rims the case can not tilt on the down stroke of the ram. This is very noticeable if you have a over gassed AR15 that dings up the rim and extractor groove causing the case to tilt with a standard die.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1371241, member: 28965"] The problem with using feeler gauges is it can restrict the case movement in the shell holder. And if there are dings in the rim and extractor groove it can cause the case to tilt. At AccurateShooter.com and other information websites they tell you to remover the shell holder retaining clip from the top of the ram and use a o-ring to hold it in place. This allows the shell holder to "float" giving the case more room to self center inside the die. The dings on the rim and extractor groove can also cause the case to tilt on the down stroke of the ram and pull the case necks off center and induce runout. This is where the Forster full length benchrest dies are heads above the rest. The Forster high mounted floating expander enters the case neck when the case neck is still held and centered in the neck of the die. And even if you have chewed up case rims the case can not tilt on the down stroke of the ram. This is very noticeable if you have a over gassed AR15 that dings up the rim and extractor groove causing the case to tilt with a standard die. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
shoulder bump problem
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