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Rifles, Reloading, Optics, Equipment
Reloading
Polishing a body die?
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<blockquote data-quote="Bart B" data-source="post: 839245" data-attributes="member: 5302"><p>Checked your site and found the following sentence printed first in your "Understanding Headspace" page:</p><p></p><p><strong>The term headspace means the "space" between the "head" of your case and the breech.</strong></p><p></p><p>The picture of the case (image named "headspace" with arrows pointing to where to measure chamber clearance when comparing your handloads to a fired case is shown below:</p><p></p><p><img src="http://www.larrywillis.com/headspace.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Isn't the head of the case at the bottom in that picture and will be only a few thousandths in front of the breech? The dimension shown in that picture is inches greater that the space between the breech and case head; on a .300 Wby Mag case, it's 2.384 inches and is definitely not the space between the bolt face (the breech) and case head in one of Roy Weatherby's rifles chambered for that cartridge. A .300 Wby Mag heaspace GO headspace gauge measures .219" from its head to the front of the belt.</p><p></p><p>The "space" between the "head" of your case and the breech is more commonly called "head clearance" in the 'smithing business.</p><p></p><p>This is confusing information, in my opinion. for lots of folks.</p></blockquote><p></p>
[QUOTE="Bart B, post: 839245, member: 5302"] Checked your site and found the following sentence printed first in your "Understanding Headspace" page: [B]The term headspace means the "space" between the "head" of your case and the breech.[/B] The picture of the case (image named "headspace" with arrows pointing to where to measure chamber clearance when comparing your handloads to a fired case is shown below: [img]http://www.larrywillis.com/headspace.jpg[/img] Isn't the head of the case at the bottom in that picture and will be only a few thousandths in front of the breech? The dimension shown in that picture is inches greater that the space between the breech and case head; on a .300 Wby Mag case, it's 2.384 inches and is definitely not the space between the bolt face (the breech) and case head in one of Roy Weatherby's rifles chambered for that cartridge. A .300 Wby Mag heaspace GO headspace gauge measures .219" from its head to the front of the belt. The "space" between the "head" of your case and the breech is more commonly called "head clearance" in the 'smithing business. This is confusing information, in my opinion. for lots of folks. [/QUOTE]
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