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still working on a load for the 300RUM

 
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Old 03-22-2010, 01:31 AM
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Location: Boise, Idaho
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still working on a load for the 300RUM

Spent the day out in the desert trying to figure out which load is going to shoot in my sendero 300RUM.
The two powders I have been trying are Retumbo and Ramshot magnum.
The bullets I have been using are berger, 175gr, 185gr, 190gr and 210gr.
So far I like the way the 185's shoot. My two best loads were 96gr Retumbo and 97gr Retumbo. But they were not that good, nothing to brag about. I started out at 100 yards and then moved out to 200 yards. I had found a max load of 100gr of Retumbo and that seemed to throw the bullets everywhere. I think I will play a bit more with seating my bullets closer to the lands, but not too close that it makes my rifle a single shot. If that doesn't work then I guess my gun doesn't like berger bullets and its back to Nosler accubonds. I never had these kinda problems with accubonds with my wifes 300SAUM.
Any advice from the guru's out there?????

Last edited by freebird63; 03-22-2010 at 09:26 AM.
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  #2  
Old 03-22-2010, 06:31 AM
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Re: still working on a load for the 300RUM

Some rifles just won't shoot the Bergers. My 300 RUM won't. You may have to move on to other manufacturer's bullets.

Regardless of the outcome I am concerned with your statement that you used 67 and 68 grs of Retumbo. Is that a typographical error? I just checked Hodgon's site
( http://www.hodgdon.com/basic-manual-inquiry.htmland ) minimal load for a 180 was listed at 94 grs of Retumbo. 190 gr bullet's minimum charge was 90 grains. If you are shooting lower charge weights you could have a safety issue. There is a reason they don't mention lighter charge weights. Stick with recommended load data!
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Old 03-22-2010, 09:26 AM
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Re: still working on a load for the 300RUM

Thank you for catching that, I was wore out last night when I posted that. It was suppose to mean 96gr & 97gr. I loaded with the information that Walt from Berger had sent me. I know my wifes 300SAUM loves Nosler accubonds, I just might have to give them a try. The Scirrocco's look like a good bullet too. My next attempt will be seating the bullets a little closer to the lands and if that doesn't work then will look at other bullets.
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Old 03-22-2010, 02:00 PM
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Re: still working on a load for the 300RUM

I am no gun guru but the 208 grain amax is difficult to impossible to beat for external ballistics with a .648 BC. It should be heavy enough to work well on game despite its light construction. If using lightly constructed bullets like the Bergers or Amax I think a heavy for caliber bullet is the safer choice for on game performance.
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Old 03-25-2010, 10:52 AM
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Join Date: Jan 2010
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Re: still working on a load for the 300RUM

Try RE 25 and 180 grain and above bullets. Start at 93.0 grains and work up. I use 96.0 grains behind 180-190 bullets and have seen great results. Use FED215m primers. Good luck.
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Old 03-25-2010, 03:31 PM
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Re: still working on a load for the 300RUM

My rum load is 90 grains retumbo with a 200 grn mk with gold medal mag primers. I'm getting 3100 even from my rem 700 police and at 200 yards i shoot three rounds in the same hole. That my pet load I've tried bergers and they shoot great as well but not as good
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  #7  
Old 03-25-2010, 04:32 PM
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Re: still working on a load for the 300RUM

I am thinking I may have to go get some of those 208 Amax bullets and load a few and see what happens.
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