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Rifles, Reloading, Optics, Equipment
Reloading
lose primer pockets, why?
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<blockquote data-quote="bigedp51" data-source="post: 1179790" data-attributes="member: 28965"><p>How does too much headspace cause a increase in chamber pressure? This is why I posted the Enfield section above and headspace settings</p><p></p><p>Excessive headspace would leave more of the base of the case unsupported. But I do not see how or why it would cause higher chamber pressure.</p><p></p><p>Brass stretches when you exceed its elastic limits/strength, and not all cartridge cases are made the same.</p><p></p><p>Below is a Lake City 5.56 case, it has harder brass and a thicker flash hole web which adds radial strength to the base of the case. This is because military firearms have longer headspace settings and larger diameter chambers.</p><p></p><p><img src="http://i122.photobucket.com/albums/o254/bigedp51/webthickness_zps81482a55.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>So again, how does a increase in headspace cause a increase chamber pressure?</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1179790, member: 28965"] How does too much headspace cause a increase in chamber pressure? This is why I posted the Enfield section above and headspace settings Excessive headspace would leave more of the base of the case unsupported. But I do not see how or why it would cause higher chamber pressure. Brass stretches when you exceed its elastic limits/strength, and not all cartridge cases are made the same. Below is a Lake City 5.56 case, it has harder brass and a thicker flash hole web which adds radial strength to the base of the case. This is because military firearms have longer headspace settings and larger diameter chambers. [IMG]http://i122.photobucket.com/albums/o254/bigedp51/webthickness_zps81482a55.jpg[/IMG] So again, how does a increase in headspace cause a increase chamber pressure? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
lose primer pockets, why?
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