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Rifles, Reloading, Optics, Equipment
Reloading
338 Lapua issue
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<blockquote data-quote="bigedp51" data-source="post: 1442035" data-attributes="member: 28965"><p>One way to adjust the die for minimum shoulder bump is to place feeler gauges between the shell holder and die. Example start with a .010 feeler gauge and adjust the die downward to contact the feeler gauge. Then full length resize the case and see if it chambers without resistance closing the bolt. If resistance is felt closing the bolt then use a thinner .008 feeler gauge and keep going down with thinner feeler gauges until the bolt closes without resistance.</p><p></p><p><img src="https://i.imgur.com/7FfXhJ7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Redding makes competition shell holders that do the same thing as using feeler gauges but you never have to touch or adjust the die. You will have five shell holders and you start with the + .010 (plus 10 thousandths) shell holder and work downward + .008, + .006, + .004, + .002 until the case chambers without resistance.</p><p></p><p><img src="https://www.natchezss.com/media/catalog/product/cache/1/image/398x/9df78eab33525d08d6e5fb8d27136e95/R/B/RB11601.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>If you have a Hornady cartridge case headspace gauge you just measure a fired case and change shell holder for .002 shoulder bump.</p><p></p><p>Below a "fired" 5.56 Lake City case in my Hornady gauge, and then I select the proper competition shell holder for .002 shoulder bump.</p><p></p><p><img src="https://i.imgur.com/H0SXHH8.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1442035, member: 28965"] One way to adjust the die for minimum shoulder bump is to place feeler gauges between the shell holder and die. Example start with a .010 feeler gauge and adjust the die downward to contact the feeler gauge. Then full length resize the case and see if it chambers without resistance closing the bolt. If resistance is felt closing the bolt then use a thinner .008 feeler gauge and keep going down with thinner feeler gauges until the bolt closes without resistance. [IMG]https://i.imgur.com/7FfXhJ7.jpg[/IMG] Redding makes competition shell holders that do the same thing as using feeler gauges but you never have to touch or adjust the die. You will have five shell holders and you start with the + .010 (plus 10 thousandths) shell holder and work downward + .008, + .006, + .004, + .002 until the case chambers without resistance. [img]https://www.natchezss.com/media/catalog/product/cache/1/image/398x/9df78eab33525d08d6e5fb8d27136e95/R/B/RB11601.jpg[/img] If you have a Hornady cartridge case headspace gauge you just measure a fired case and change shell holder for .002 shoulder bump. Below a "fired" 5.56 Lake City case in my Hornady gauge, and then I select the proper competition shell holder for .002 shoulder bump. [img]https://i.imgur.com/H0SXHH8.jpg[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
338 Lapua issue
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