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Rifles, Reloading, Optics, Equipment
Reloading
Brass Separation Above Belt
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<blockquote data-quote="bigedp51" data-source="post: 1381069" data-attributes="member: 28965"><p>If everyone had a British .303 Enfield rifle and played with their bolt heads till they nearly went blind they would have a better understanding of the word headspace.</p><p></p><p>My No.4 Enfield below has had the headspace set from .006 tighter than the GO gauge and .010 over maximum military headspace. Meaning from .058 to .084 and SAAMI headspace is .064 GO and .067 NO-GO and .074 field maximum.</p><p></p><p>So even with the headspace set at .084 or .010 over max military headspace if the case is held against the bolt face the case will not stretch and thin on its first firing. Meaning creating a false shoulder, jamming the bullet into the lands or using a rubber o-ring to hold the case against the bolt face.</p><p></p><p><img src="https://i.imgur.com/v1GFvaK.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below using 100 grain .312 pistol bullets and a rubber O-ring to fire form cases. At max military headspace you can have .016 head clearance and a small thin rubber O-ring will hold the case against the bolt face.</p><p></p><p><img src="https://i.imgur.com/HHDfGl9.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://i.imgur.com/FCHGvIZ.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Bottom line, don't let the case stretch on its first firing and let it headspace on its shoulder thereafter.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1381069, member: 28965"] If everyone had a British .303 Enfield rifle and played with their bolt heads till they nearly went blind they would have a better understanding of the word headspace. My No.4 Enfield below has had the headspace set from .006 tighter than the GO gauge and .010 over maximum military headspace. Meaning from .058 to .084 and SAAMI headspace is .064 GO and .067 NO-GO and .074 field maximum. So even with the headspace set at .084 or .010 over max military headspace if the case is held against the bolt face the case will not stretch and thin on its first firing. Meaning creating a false shoulder, jamming the bullet into the lands or using a rubber o-ring to hold the case against the bolt face. [IMG]https://i.imgur.com/v1GFvaK.jpg[/IMG] Below using 100 grain .312 pistol bullets and a rubber O-ring to fire form cases. At max military headspace you can have .016 head clearance and a small thin rubber O-ring will hold the case against the bolt face. [IMG]https://i.imgur.com/HHDfGl9.jpg[/IMG] [IMG]https://i.imgur.com/FCHGvIZ.jpg[/IMG] Bottom line, don't let the case stretch on its first firing and let it headspace on its shoulder thereafter. [/QUOTE]
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Reloading
Brass Separation Above Belt
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