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338 cal comparison

 
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  #36  
Old 05-17-2003, 02:49 PM
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Re: 338 cal comparison

Sniper,
Have you ever compared the 338 Ultra to the 338/300 Ultra to see what the difference was in MV or trajectory?
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Brent Moffitt
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  #37  
Old 05-17-2003, 04:11 PM
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Re: 338 cal comparison

No I haven't. I believe the .338RUM is 90 thou. shorter than the 300 RUM case so there will be an advantage in capacity for the 300 necked to .338. Many variables involved but the longer case could yield a minimal increase in performance.

[ 05-18-2003: Message edited by: sniper2 ]
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  #38  
Old 05-18-2003, 06:42 PM
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Re: 338 cal comparison

really close between the 338 rum, and the 300 rum, here goes

300 rum oal=2.850
338 rum oal=2.760the neck length on the 338 rumis .330 in, and the 300 rum sports a .306 in length on the neck, so the difference in case capacity may be 30-40 thousandths max, i am not sure if there is enough of a difference to really matter as far as case capacity goes, i am sure i want a 338 cal, it will be the lapua, or the rum, I just need to decide
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  #39  
Old 05-19-2003, 12:07 AM
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Re: 338 cal comparison

I believe the length of the neck is reduced because it's 30 cal, the shoulder moves forward as it moves in.

I've not compared the two but, I think the distance to the shoulder should be about that much shorter too. That would be worth about 4gr capacity. What that would equate to in MV I'm not sure.
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  #40  
Old 05-20-2003, 02:00 PM
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Re: 338 cal comparison

Hey Avengeusa I have the solution! Build one of each and you will surely have the right one!!Would be fun trying to see the contrasts.
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  #41  
Old 05-20-2003, 08:38 PM
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Re: 338 cal comparison

i may just end up doing that
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