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Rifles, Reloading, Optics, Equipment
Reloading
Neck Sizing
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<blockquote data-quote="65WSM" data-source="post: 2345454" data-attributes="member: 9551"><p>The Lee Seat die, with the sliding sleeve, like the Bonaza/Forster, is golden. The collet neck sizing die is great for staightening necks on new or new to you and damaged cases. It is nearly impossible to get consistent neck tension with the mandrel die. I have tried and I have a dial indicator on my K&M arbor press when seating with Wilson seating dies to measure neck tension. What the 1000 yard "F" class and 600 yd benchrest crowd are using, is the Full Length Redding Type "S" bushing die (used without the button). The shoulder bump is adjusted with the Redding Competition Shellholder set. You will want to hold the shoulder bump to that which allows reliable clambering in all weather conditions for hunting. The neck tension is tuned to (in my case and applications to one and a half thousandths) with the bushings and inside mandrels. This is the state o the art. </p><p></p><p>I show a group shot in freezing weather recently, with a factory barreled CMMG .224 Valkyrie at 540 yards with two magazines of three. II have also learned that weight sorting cases shrinks groups.</p></blockquote><p></p>
[QUOTE="65WSM, post: 2345454, member: 9551"] The Lee Seat die, with the sliding sleeve, like the Bonaza/Forster, is golden. The collet neck sizing die is great for staightening necks on new or new to you and damaged cases. It is nearly impossible to get consistent neck tension with the mandrel die. I have tried and I have a dial indicator on my K&M arbor press when seating with Wilson seating dies to measure neck tension. What the 1000 yard "F" class and 600 yd benchrest crowd are using, is the Full Length Redding Type "S" bushing die (used without the button). The shoulder bump is adjusted with the Redding Competition Shellholder set. You will want to hold the shoulder bump to that which allows reliable clambering in all weather conditions for hunting. The neck tension is tuned to (in my case and applications to one and a half thousandths) with the bushings and inside mandrels. This is the state o the art. I show a group shot in freezing weather recently, with a factory barreled CMMG .224 Valkyrie at 540 yards with two magazines of three. II have also learned that weight sorting cases shrinks groups. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck Sizing
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