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The Range
Ammo & Reloading
300 blackout reloding issues.
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<blockquote data-quote="swampratt" data-source="post: 3190235" data-attributes="member: 15054"><p>A seat and crimp die in one .</p><p>I would raise the ram all the way with shell holder and the brass in it.</p><p>Twist the bullet seating portion all the way out.</p><p>Twist the die in until it contacts the brass case and then lower the ram.</p><p>Give the die another 1/8 turn and lock the lock ring down or less than 1/8 turn for less crimp.</p><p></p><p>Now you adjust the seating portion.</p><p>I never could wrap my head around that seat and crimp die as it is not crimped all the way until the ram is all the way up and as you are moving the ram up you are still seating the bullet deeper and deeper..This is fine if it has a crimp groove as the bullet and case crimp will not touch until the very last.</p><p></p><p>But if no crimp groove is there you skid the bullet for a bit against the case mouth during crimpint.</p><p></p><p>Now when I did crimp I did so with very little crimp I could measure it at .001"</p><p>The crimp was .001" smaller OD than just below the crimp. Basically ironing out the flare.</p><p>If you are getting .005" I feel you went too far.</p><p></p><p>1/8 turn may be way too much.</p><p>And then all cases need to be spot on in length.. you get one .007" longer you may get the crinkle.</p><p></p><p>I actually developed a feel when crimping and never brought the ram all the way up on some cases.</p><p>I could feel the crimp happening.. Like the winter time crappie nibbling on a jig 20 feet below the surface.</p><p></p><p>Now I also tested bullet pull with a gauge and bullet seating forces with a gauge and it is usually 20 lbs minimum.</p><p>.001" neck tension and winchester NON annealed cases .308.</p><p>Annealed would be 40 psi to pull or seat the bullet.</p><p>Lapua cases were in the 80 psi area.</p><p></p><p>I sort my cases by neck ID and neck OD after sizing..all cases are annealed each time.</p><p>Consistent bullet pull that way and improved accuracy.</p><p>No crimp.</p><p></p><p>Is there a reason you are crimping?</p></blockquote><p></p>
[QUOTE="swampratt, post: 3190235, member: 15054"] A seat and crimp die in one . I would raise the ram all the way with shell holder and the brass in it. Twist the bullet seating portion all the way out. Twist the die in until it contacts the brass case and then lower the ram. Give the die another 1/8 turn and lock the lock ring down or less than 1/8 turn for less crimp. Now you adjust the seating portion. I never could wrap my head around that seat and crimp die as it is not crimped all the way until the ram is all the way up and as you are moving the ram up you are still seating the bullet deeper and deeper..This is fine if it has a crimp groove as the bullet and case crimp will not touch until the very last. But if no crimp groove is there you skid the bullet for a bit against the case mouth during crimpint. Now when I did crimp I did so with very little crimp I could measure it at .001" The crimp was .001" smaller OD than just below the crimp. Basically ironing out the flare. If you are getting .005" I feel you went too far. 1/8 turn may be way too much. And then all cases need to be spot on in length.. you get one .007" longer you may get the crinkle. I actually developed a feel when crimping and never brought the ram all the way up on some cases. I could feel the crimp happening.. Like the winter time crappie nibbling on a jig 20 feet below the surface. Now I also tested bullet pull with a gauge and bullet seating forces with a gauge and it is usually 20 lbs minimum. .001" neck tension and winchester NON annealed cases .308. Annealed would be 40 psi to pull or seat the bullet. Lapua cases were in the 80 psi area. I sort my cases by neck ID and neck OD after sizing..all cases are annealed each time. Consistent bullet pull that way and improved accuracy. No crimp. Is there a reason you are crimping? [/QUOTE]
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300 blackout reloding issues.
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