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Rifles, Reloading, Optics, Equipment
Reloading
Big 338 powders??
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 458984" data-attributes="member: 505"><p>lovdasnow, I currently have seven 338-378 weatherby's I built when it was a wildcat well before it became a standard cartridge. My data on the 338-378 wby alone would make a good book. I have extensive data with most reasonable powders on bullets from 185-325 grains shot on my range. Powders faster than retumbo limit the velocities attainable with this cartridge. Send me a PM and I will get you some data. Yours would shoot the same powders best just more of it with better velocities. I am not familiar with your improved version but the 338-378 wby imp is certainly at the top of the big 338 spectrum. This huge case having the ability to utilize massive doses of super slow burning powders is what puts it well ahead of the various offerings off the ultramag and lapua cases.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 458984, member: 505"] lovdasnow, I currently have seven 338-378 weatherby's I built when it was a wildcat well before it became a standard cartridge. My data on the 338-378 wby alone would make a good book. I have extensive data with most reasonable powders on bullets from 185-325 grains shot on my range. Powders faster than retumbo limit the velocities attainable with this cartridge. Send me a PM and I will get you some data. Yours would shoot the same powders best just more of it with better velocities. I am not familiar with your improved version but the 338-378 wby imp is certainly at the top of the big 338 spectrum. This huge case having the ability to utilize massive doses of super slow burning powders is what puts it well ahead of the various offerings off the ultramag and lapua cases. [/QUOTE]
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Big 338 powders??
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