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Rifles, Reloading, Optics, Equipment
Reloading
Neck Turning Brass
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<blockquote data-quote="Bullet bumper" data-source="post: 844915" data-attributes="member: 17844"><p>Correct , the washed sets the unsized length. </p><p>It's mainly trial but no error , to work out whats a good length to leave unsized .</p><p>It all depends on how much bullet grip you have and need to hold the bullet for a certain purpose. Neck tension requirement is different for different ammo use. The tension you would need to hand feed a cartridge one at a time is less than you would need to use a magnum cartridge through a magazine .</p><p>A bullet needs to be kept straight at all times in the case during feeding as it could affect accuracy and safety if the bullet does not have enough grip .</p><p>Start at 1/3 or less of the neck length leaving 2/3 for bullet grip. </p><p>If you get any resistance to chambering that annoys you , then reduce the length more with a thinner washer . </p><p>When using the Lee Collete die it is better to do two sizing pull downs . The second one at 90 degrees to the first . That is just rotate the case 90 degrees and size it again . </p><p>Also using a press like an RC BS Rock chucker that goes over centre is the best way to use a Lee collet die to get a repeatable pressure on the case neck . </p><p>I could take some pictures of sizing with the Lee collet die and washer if you like but not the whole process that I have outlined from the start of teh thread , that would take a lot of photos. </p><p>I'll take some photos tomorrow ok that will make it a bit clearer .</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 844915, member: 17844"] Correct , the washed sets the unsized length. It's mainly trial but no error , to work out whats a good length to leave unsized . It all depends on how much bullet grip you have and need to hold the bullet for a certain purpose. Neck tension requirement is different for different ammo use. The tension you would need to hand feed a cartridge one at a time is less than you would need to use a magnum cartridge through a magazine . A bullet needs to be kept straight at all times in the case during feeding as it could affect accuracy and safety if the bullet does not have enough grip . Start at 1/3 or less of the neck length leaving 2/3 for bullet grip. If you get any resistance to chambering that annoys you , then reduce the length more with a thinner washer . When using the Lee Collete die it is better to do two sizing pull downs . The second one at 90 degrees to the first . That is just rotate the case 90 degrees and size it again . Also using a press like an RC BS Rock chucker that goes over centre is the best way to use a Lee collet die to get a repeatable pressure on the case neck . I could take some pictures of sizing with the Lee collet die and washer if you like but not the whole process that I have outlined from the start of teh thread , that would take a lot of photos. I'll take some photos tomorrow ok that will make it a bit clearer . [/QUOTE]
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