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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338-300 RUM (Edge) vs 338 RUM, the Real Story??
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<blockquote data-quote="INTJ1" data-source="post: 515593" data-attributes="member: 34312"><p>That is what I suspect. 100 fps needs a 14% increase in case capacity, and even though I have since learned the Edge is a slighly blown out 300-338, there is no way we can get to a 14% difference in case capacity when both are throated the same. Even if we can find an 8% increase in case capacity, as many have mentioned with the Edge, we only get a 56 fps increase. I think the other 6 grains in case capacity come from most Edges being seated long and most RUMs being seated at 3.6 to 3.7"</p><p> </p><p>I have decided to go with the 338-300 RUM. Not because I think there is any real performance difference, but it is exceedingly simple to run 300 RUM brass though my Sinclair 338 expander mandrel. I'd have to do that with 338 RUM cases before I could neck turn them anyway. 300 RUM brass is easy to find, and the die mod is simple. Take a FL Type-S Redding sizer, ream it out, and run the appropriate sized bushing.</p></blockquote><p></p>
[QUOTE="INTJ1, post: 515593, member: 34312"] That is what I suspect. 100 fps needs a 14% increase in case capacity, and even though I have since learned the Edge is a slighly blown out 300-338, there is no way we can get to a 14% difference in case capacity when both are throated the same. Even if we can find an 8% increase in case capacity, as many have mentioned with the Edge, we only get a 56 fps increase. I think the other 6 grains in case capacity come from most Edges being seated long and most RUMs being seated at 3.6 to 3.7" I have decided to go with the 338-300 RUM. Not because I think there is any real performance difference, but it is exceedingly simple to run 300 RUM brass though my Sinclair 338 expander mandrel. I'd have to do that with 338 RUM cases before I could neck turn them anyway. 300 RUM brass is easy to find, and the die mod is simple. Take a FL Type-S Redding sizer, ream it out, and run the appropriate sized bushing. [/QUOTE]
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338-300 RUM (Edge) vs 338 RUM, the Real Story??
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