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Reloading Berger Bullets


300 RUM powder choice?

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Unread 07-17-2009, 03:00 PM
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Join Date: Dec 2008
Location: rathdrum, id.
Posts: 5,266
Re: 300 RUM powder choice?

I have two 300 rum's and have had the best results with retumbo and h870 (no longer available but thunderbird in ariz. has t870 which is the same thing) I loaded 105grs of h870 for 3350' with a 195 gr homemade ballistic tipped 8s spitzer with rebated boattail, .590 b.c. (180 accubonds would make 3550') With my 700 rem. and 27"" lilja 10 twist I get 3225' with 95 grs of retumbo. This is a good hunting choice as retumbo is less temp sensitive than most powders. If you are into long range, this makes a difference.
I have tryed about every slow burning powder available and 870 will always give top velocity! Good luck.........Rich
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Unread 07-21-2009, 05:01 AM
Platinum Member
Join Date: Dec 2001
Location: Mukilteo, WA
Posts: 1,092
Re: 300 RUM powder choice?

For 173-220's Retumbo. For 220-290's, US869. That's all you need. ;)
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