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US869 and 240smK 300rum

 
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  #1  
Old 06-22-2009, 11:50 PM
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US869 and 240smK 300rum

So I am about to shoot my 300rum for the first time. I wanted to build an edge but got a great deal on a 300rum barrel and figured I would give the 240smk a try. The only rum compliant powder I could scrounge up was US869. I have read everything here on the use of the two together but just want to make sure I am not missing something.
I plan to start with 95gr of us869 and go up from there. It will be about 70 degreed here and from what I have read this should not be a problem until I start pushing it (which I probably won’t). I would like to see 2800 fps out of my 26” barrel single shot savage. I would like to be able to shoot this thing from 40 to 80 degrees. Am I starting in the right area?
Any help would be appreciated.
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  #2  
Old 06-23-2009, 01:58 AM
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Re: US869 and 240smK 300rum

This thread should help you:

300 RUM, 240 SMK, US869 Initial Results
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Old 06-23-2009, 09:17 PM
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Re: US869 and 240smK 300rum

I did read that. Just wanted to make sure I did not miss anything. Thanks.
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Old 06-24-2009, 01:53 AM
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Re: US869 and 240smK 300rum

I got velocity results right in line with what JonA posted out of my 30" 1:10 5R barrel. I didn't, however, got the consistency I was looking for (poor ES/SDs).

I've been advised to try Fed primers for more consistency with the US869, but haven't been able to find any to try that out.
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Old 06-24-2009, 08:20 AM
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Re: US869 and 240smK 300rum

Thanks Matt.
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  #6  
Old 07-03-2009, 12:22 AM
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Re: US869 and 240smK 300rum

One LRH member uses 104 gr of US869 in his factory barreled M700 LSS in 300 RUM.
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