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Rifles, Reloading, Optics, Equipment
Reloading
Brass Separation Above Belt
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<blockquote data-quote="bigedp51" data-source="post: 1383741" data-attributes="member: 28965"><p>We have also found out that the cause of the OPs case head separations was caused by a shade tree mechanic gunsmith.</p><p></p><p>And below is the cheap bastards headspace gauge to check your rifles headspace. (head clearance)</p><p></p><p>Take a new unfired case and measure its length from case mouth to the base of the case and write it down.</p><p></p><p><img src="https://i.imgur.com/SgwqgaU.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Now take a fired spent primer and just using your fingers start the spent primer into the primer pocket.</p><p></p><p><img src="https://i.imgur.com/oNIvIiX.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://i.imgur.com/zQxlYGp.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Now slowly chamber this case and and let the bolt face seat the primer and extract the case.</p><p></p><p>Now measure the case again from the case mouth to the top of the primer and write it down.</p><p></p><p>Now subtract the first case measurement from the second and this will be your head clearance. Meaning the air space between the rear of the case and the bolt face and the distance the case can stretch when fired. And on a rimmed case if you add the rim thickness you would have the actual headspace measurement.</p><p></p><p>And if you do not have a Hornady cartridge case headspace gauge you can also use this method to check your resized cases shoulder bump.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1383741, member: 28965"] We have also found out that the cause of the OPs case head separations was caused by a shade tree mechanic gunsmith. And below is the cheap bastards headspace gauge to check your rifles headspace. (head clearance) Take a new unfired case and measure its length from case mouth to the base of the case and write it down. [IMG]https://i.imgur.com/SgwqgaU.jpg[/IMG] Now take a fired spent primer and just using your fingers start the spent primer into the primer pocket. [img]https://i.imgur.com/oNIvIiX.jpg[/img] [img]https://i.imgur.com/zQxlYGp.jpg[/img] Now slowly chamber this case and and let the bolt face seat the primer and extract the case. Now measure the case again from the case mouth to the top of the primer and write it down. Now subtract the first case measurement from the second and this will be your head clearance. Meaning the air space between the rear of the case and the bolt face and the distance the case can stretch when fired. And on a rimmed case if you add the rim thickness you would have the actual headspace measurement. And if you do not have a Hornady cartridge case headspace gauge you can also use this method to check your resized cases shoulder bump. [/QUOTE]
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Reloading
Brass Separation Above Belt
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