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300 ultra mag

 
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  #1  
Old 11-15-2004, 02:27 PM
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Join Date: Nov 2004
Location: El Reno, OK
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300 ultra mag

Me and a fried of mine both just bought 300 ultra mag's and we a loading all of the ammo we shot. My question is we are wanting to load 125 gr ballistic tip bullets and so far the only load info we can find is for Rl 22 powder. We want to use something like H1000 or Retumbo because they are temperature tolerant and Rl22 isn't. I can get it around 4000 fps right now and I would like to keep that but with a different powder. Any tips would be greatly appreciated.
Thanks a lot
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  #2  
Old 11-15-2004, 02:45 PM
 
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Re: 300 ultra mag

If you have a 26 inch barrel I think RL22 is about the best powder for the RUM and that bullet.Retumbo and RL25 will not gain you any velocity.Just burn more powder...If you wanna try another powder...Try H4831...It burn about the same as the 22

[ 11-15-2004: Message edited by: The Long 1 ]
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  #3  
Old 11-15-2004, 03:53 PM
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Join Date: Jan 2004
Location: Dallas, Texas
Posts: 164
Re: 300 ultra mag

Long is right. I tried Retumbo with a 165 grn bullet in my 300 Ultra and it would throw a large fireball of unused powder. R 222 has worked real well for me. You also should look on Steves pages at his load data http://stevespages.com/page8.htm
Good Luck
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  #4  
Old 11-16-2004, 01:39 PM
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Join Date: Oct 2004
Location: Boise
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Re: 300 ultra mag

If you go to www.loadyourown.com you can check out what some people are doing.
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  #5  
Old 11-18-2004, 04:24 PM
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Join Date: Jun 2003
Location: Hermiston, Oregon
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Re: 300 ultra mag

I got a Rem 700 LSS in .300 RUM and worked up a load with the 125g BT and RL-22. It produced 3/4" at 100 yards for 3 shots and was shooting at 3950fps. Not to far from your expectation of 4000fps with the slower burning powders.
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  #6  
Old 11-19-2004, 10:12 AM
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Re: 300 ultra mag

hey rem20/06
how much powder you loading???
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Steve Elmenhorst
Third Generation Shooting Supply
www.3rdgss.com
"Products for shooters, by shooters"
1-800-522-3314
monday-friday 8:30-5:30 CST
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  #7  
Old 11-29-2004, 12:37 AM
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Join Date: Dec 2001
Location: Montana
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Re: 300 ultra mag

Some other possibly helpful pages:
http://stevespages.com/page7.htm General Firearms http://stevespages.com/page7a.htm IPB Of Firearms http://stevespages.com/page7b.htm Firearms Manuals http://stevespages.com/page7c.htm Field Manuals http://stevespages.com/page8.htm General Reloading http://stevespages.com/page8b.htm Software Download http://stevespages.com/page8c.htm Reloading Data http://stevespages.com/page8d.htm Cartridge Drawings http://stevespages.com/page8e.htm All About Bullets http://stevespages.com/page8f.htm Terminal Ballistics http://stevespages.com/table2.html On-line Catalogs http://stevespages.com/table3.html Recipes/NRA/Stuff

And there is even some stuff there that does not apply to reloading or firearms...
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