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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cranking up the RPM
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<blockquote data-quote="Tac-O" data-source="post: 2372585" data-attributes="member: 109994"><p>I am wondering why saami has Max pressure on the 6.5rpm at 65k psi, when the 6.5-284 and 284win are both at 58k psi.</p><p></p><p>It sounds like the rebated rim on the 284 is what decreases that max pressure, so how could a case that's just longer handle more pressure? The only other difference I see in the design is that the rpm chamber has a taper of about 0.013/in and the 284win has a taper of about 0.016/in. I wouldn't think that tiny change could allow a significant bump in pressure.</p></blockquote><p></p>
[QUOTE="Tac-O, post: 2372585, member: 109994"] I am wondering why saami has Max pressure on the 6.5rpm at 65k psi, when the 6.5-284 and 284win are both at 58k psi. It sounds like the rebated rim on the 284 is what decreases that max pressure, so how could a case that's just longer handle more pressure? The only other difference I see in the design is that the rpm chamber has a taper of about 0.013/in and the 284win has a taper of about 0.016/in. I wouldn't think that tiny change could allow a significant bump in pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Cranking up the RPM
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