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Rifles, Reloading, Optics, Equipment
Reloading
Known Loads too hot now..why
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<blockquote data-quote="Pdvdh" data-source="post: 387055" data-attributes="member: 4191"><p>Solvent, oil, or water in the chamber doesn't raised chamber pressures. They will cause false-positive symptoms of high pressure. </p><p></p><p>Notice Nosler's statement "... will cause <u>symptoms</u> of high pressure."</p><p></p><p>Chamber pressures are the same, wet chamber or dry. A wet cartridge-chamber interface allows the case head to impact the bolt face with somewhat greater force, and the case head brass may flow into the bolt face voids resulting in stiff bolt lift. </p><p></p><p>A smaller chamber will increase pressures. However a light film of solvent, oil, or water, doesn't decrease chamber size enough to increase chamber pressure. These symptoms of high pressure Nosler talks of are not increased pressures due to smaller chamber volume. The symptoms are caused because the reduced friction between the chamber and the cartridge with the wet interface allows for increased case head setback onto the bolt face.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 387055, member: 4191"] Solvent, oil, or water in the chamber doesn't raised chamber pressures. They will cause false-positive symptoms of high pressure. Notice Nosler's statement "... will cause [U]symptoms[/U] of high pressure." Chamber pressures are the same, wet chamber or dry. A wet cartridge-chamber interface allows the case head to impact the bolt face with somewhat greater force, and the case head brass may flow into the bolt face voids resulting in stiff bolt lift. A smaller chamber will increase pressures. However a light film of solvent, oil, or water, doesn't decrease chamber size enough to increase chamber pressure. These symptoms of high pressure Nosler talks of are not increased pressures due to smaller chamber volume. The symptoms are caused because the reduced friction between the chamber and the cartridge with the wet interface allows for increased case head setback onto the bolt face. [/QUOTE]
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Known Loads too hot now..why
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