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Rifles, Reloading, Optics, Equipment
Reloading
Fire forming help
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<blockquote data-quote="bigedp51" data-source="post: 1492311" data-attributes="member: 28965"><p>Oiling your cases will double your bolt thrust and you are warned not to do it in the reloading manuals and firearms manuals,</p><p></p><p><img src="https://i.imgur.com/NKNfs2n.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://i.imgur.com/l82GT10.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://i.imgur.com/NYjQw8g.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below running your AR15 too "WET" and the oil getting into the chamber and its added bolt thrust.</p><p></p><p><img src="https://i.imgur.com/PijdpgS.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The British used the base crusher method of taking chamber pressure readings. They used a hollow copper crusher that allowed the firing pin to pass through the copper crusher. And they had to oil the cartridge to get a true chamber pressure reading, Below is from the 1929 British textbook of small arms.</p><p></p><p><img src="https://i.imgur.com/W8oz09S.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>A dry case grips the chamber walls and acts like a shock absorber and reduces the amount of bolt thrust and the dwell time the case pushing on the bolt face.</p><p></p><p>Bottom line, oiling your cases will cause double the bolt thrust on you locking lugs and is a very bad idea.</p><p></p><p><img src="https://i.imgur.com/cKCA1re.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>If the ammunition companies wanted the cases lubed they would come that way from the factory.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1492311, member: 28965"] Oiling your cases will double your bolt thrust and you are warned not to do it in the reloading manuals and firearms manuals, [IMG]https://i.imgur.com/NKNfs2n.jpg[/IMG] [IMG]https://i.imgur.com/l82GT10.jpg[/IMG] [IMG]https://i.imgur.com/NYjQw8g.jpg[/IMG] Below running your AR15 too "WET" and the oil getting into the chamber and its added bolt thrust. [IMG]https://i.imgur.com/PijdpgS.jpg[/IMG] The British used the base crusher method of taking chamber pressure readings. They used a hollow copper crusher that allowed the firing pin to pass through the copper crusher. And they had to oil the cartridge to get a true chamber pressure reading, Below is from the 1929 British textbook of small arms. [IMG]https://i.imgur.com/W8oz09S.jpg[/IMG] A dry case grips the chamber walls and acts like a shock absorber and reduces the amount of bolt thrust and the dwell time the case pushing on the bolt face. Bottom line, oiling your cases will cause double the bolt thrust on you locking lugs and is a very bad idea. [img]https://i.imgur.com/cKCA1re.jpg[/img] If the ammunition companies wanted the cases lubed they would come that way from the factory. [/QUOTE]
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Fire forming help
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