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Rifles, Reloading, Optics, Equipment
Reloading
Velocity Effect of Bullet Tension
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<blockquote data-quote="P7M13" data-source="post: 2017091" data-attributes="member: 94154"><p>I strenuously disagree with your notion of case expansion, based on observation. </p><p>Burned powder on your case neck, and in some cases, shoulder and body, speak volumes of the case expansion, and subsequently, the state of the work hardening of the brass. You can feel it when you seat your bullet.</p><p>Stiff, high tension brass won't expand readily, and I have found powder tracks farther down the case with these. Got me in the habit of annealing every other firing.</p><p>I don't have an arbor press with gauge, but I do pay attention to the force needed to seat the bullet. Those that seat too loosely, I check the tension by whether I can still move the bullet by hand. If I can, resize and try again. If still movable, toss. The ones I note are much harder to seat, I also pull, anneal, resize and reload.</p><p>Just tossing out there, being this is a hunting rifle in a LR Hunting forum, a MV ES of 50fps (.243 / 95gr / .411 G1 / 3150 / 3200fps) translates into ~2.5" bullet difference at 600 yards.</p></blockquote><p></p>
[QUOTE="P7M13, post: 2017091, member: 94154"] I strenuously disagree with your notion of case expansion, based on observation. Burned powder on your case neck, and in some cases, shoulder and body, speak volumes of the case expansion, and subsequently, the state of the work hardening of the brass. You can feel it when you seat your bullet. Stiff, high tension brass won't expand readily, and I have found powder tracks farther down the case with these. Got me in the habit of annealing every other firing. I don't have an arbor press with gauge, but I do pay attention to the force needed to seat the bullet. Those that seat too loosely, I check the tension by whether I can still move the bullet by hand. If I can, resize and try again. If still movable, toss. The ones I note are much harder to seat, I also pull, anneal, resize and reload. Just tossing out there, being this is a hunting rifle in a LR Hunting forum, a MV ES of 50fps (.243 / 95gr / .411 G1 / 3150 / 3200fps) translates into ~2.5" bullet difference at 600 yards. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Velocity Effect of Bullet Tension
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