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Long Range Hunting & Shooting
Concentricity Question
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<blockquote data-quote="jrock" data-source="post: 1404852" data-attributes="member: 78569"><p>I avoid concentricity issues by turning necks, and seating my bullets in stages. What I mean by that is I push the bullet in about half way, then rotate the case about half a turn, and seat the rest of the way, then rotate again, and verify seating depth. Annealing and case lube on the inside of the neck also helps this process. I get .001 or better consistently measured on the neck and bullet. </p><p></p><p>The only clocking of a round I've heard of was in relation to the case wall thickness, not the concentricity of the round. I guess if you were stuck with bad ammo, then clocking could help. For hunting, its almost impossible to get clocked rounds in the same spot every time loading out of a staggered magazine push feed system. Center feeds work to some extent and control round feeds work.</p></blockquote><p></p>
[QUOTE="jrock, post: 1404852, member: 78569"] I avoid concentricity issues by turning necks, and seating my bullets in stages. What I mean by that is I push the bullet in about half way, then rotate the case about half a turn, and seat the rest of the way, then rotate again, and verify seating depth. Annealing and case lube on the inside of the neck also helps this process. I get .001 or better consistently measured on the neck and bullet. The only clocking of a round I've heard of was in relation to the case wall thickness, not the concentricity of the round. I guess if you were stuck with bad ammo, then clocking could help. For hunting, its almost impossible to get clocked rounds in the same spot every time loading out of a staggered magazine push feed system. Center feeds work to some extent and control round feeds work. [/QUOTE]
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