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Rifles, Reloading, Optics, Equipment
Reloading
The first sign of excessive pressure is...
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<blockquote data-quote="Bart B" data-source="post: 824469" data-attributes="member: 5302"><p>I believe someone could get a box of SAAMI "standard reference" ammo from a supplier listed in:</p><p></p><p><a href="http://www.saami.org/specifications_and_information/publications/download/206.pdf" target="_blank">http://www.saami.org/specifications_and_information/publications/download/206.pdf</a></p><p></p><p>starting on page 221. </p><p></p><p>Use this in your barrel with a chronograph and see what the velocity is at the 15-foot standard distance. If you barrel shoots it faster than its specs, your barrel's inside dimensions are such that peak pressure's probably higher than SAAMI spec's; lower if less than.</p><p></p><p>The following's the latest SAAMI specs for centerfire rifle cartridges' pressure and velocity numbers in SAAMI spec test barrel's bore, groove and chamber specs:</p><p></p><p><a href="http://www.saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf" target="_blank">http://www.saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf</a></p></blockquote><p></p>
[QUOTE="Bart B, post: 824469, member: 5302"] I believe someone could get a box of SAAMI "standard reference" ammo from a supplier listed in: [url]http://www.saami.org/specifications_and_information/publications/download/206.pdf[/url] starting on page 221. Use this in your barrel with a chronograph and see what the velocity is at the 15-foot standard distance. If you barrel shoots it faster than its specs, your barrel's inside dimensions are such that peak pressure's probably higher than SAAMI spec's; lower if less than. The following's the latest SAAMI specs for centerfire rifle cartridges' pressure and velocity numbers in SAAMI spec test barrel's bore, groove and chamber specs: [url]http://www.saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf[/url] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
The first sign of excessive pressure is...
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