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300RUM powder choices

 
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  #1  
Old 08-14-2006, 06:48 AM
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Join Date: Dec 2004
Location: South Africa
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300RUM powder choices

Hi guys,
anyone out there using IMR4350 or H4831 as their powder choice for 300RUM. Our local choice of powders in South Africa doesn't give us much variety. Have been using a local powder B12.7 (equivalent to H870), but been getting huge variances between batch lots. Next possible choices are basically equivalent to above mentioned powders.

Want to launch 200gr or 220gr smk's from standard 26" Sendero.

Any load data would be appreciated.
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  #2  
Old 08-14-2006, 08:14 AM
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Re: 300RUM powder choices

I think the 2 powders you listed will be too fast for these bullet weights. Try and find some Retumbo or H1000.
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  #3  
Old 08-14-2006, 09:14 AM
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Re: 300RUM powder choices

Hodgdon US869.
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Old 08-14-2006, 09:22 AM
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Re: 300RUM powder choices

The posts above are good advice also you might try r25, Imr 7828.
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  #5  
Old 08-14-2006, 09:30 AM
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Re: 300RUM powder choices

appreciate the advise. Problem is that we can only get locally manufactured powder. My next choice is local powder S385 (equivalent to H4831) or S365 (equivalent to IMR4350).

Anyone use H4831 or IMR4350 to load up with ?

Cheers,
Paul
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  #6  
Old 08-14-2006, 09:43 AM
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Re: 300RUM powder choices

Get the slowest powder you can then.

Check out: http://www.hodgdon.com/data/general/burnratechart.php

You can see where the powder you are considering is in relation to the powders being suggested to you. A fair amount of difference generally. I did use VV N560 (equivalent to N160 in burning rate, I understand) in my 300RUM which is closer to the speed of powder you are mentioning--pretty close to 4831 actually. If I recall, I was in the high 80's for grains of powder charge and around 3075fps or so with the 200AB. Start low and work up as always. I like what I'm seeing with US869 much better and the 200AB.
__________________
In the beginning God created the heavens and the earth. Genesis 1:1

"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God?" Thomas Jefferson - Notes on the State of Virginia

www.wildsidesystems.com - Shelter for Your WildSide - http://www.youtube.com/watch?v=tYwgo...&feature=g-upl
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  #7  
Old 08-14-2006, 10:53 PM
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Re: 300RUM powder choices

Sorry I didn't realize you couldn't order powder... [img]/ubbthreads/images/graemlins/confused.gif[/img]
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