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Rifles, Reloading, Optics, Equipment
Reloading
.300RUM over preasure?
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<blockquote data-quote="thebbc" data-source="post: 567335" data-attributes="member: 37086"><p>At the standard COAL of 3.6 for the 300 RUM, a max load for the berger 185 shows 63500PSI at 97 grains of retumbo. 101 grains of retumbo at this COAL shows to be nearly 10000psi over max. This kind of overage would be more than noticeable. At a max COAL of 3.85 the same 97 grains would yield 57500PSI while the 101 grain load would yield about 66500PSI. All of this assumes you aren't stuffed into the rifling. If you are then your pressures will be much higher. FYI max SAAMI psi for 300 ultra is 64977PSI.</p></blockquote><p></p>
[QUOTE="thebbc, post: 567335, member: 37086"] At the standard COAL of 3.6 for the 300 RUM, a max load for the berger 185 shows 63500PSI at 97 grains of retumbo. 101 grains of retumbo at this COAL shows to be nearly 10000psi over max. This kind of overage would be more than noticeable. At a max COAL of 3.85 the same 97 grains would yield 57500PSI while the 101 grain load would yield about 66500PSI. All of this assumes you aren't stuffed into the rifling. If you are then your pressures will be much higher. FYI max SAAMI psi for 300 ultra is 64977PSI. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.300RUM over preasure?
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