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Old January 28, 2010, 07:57 PM   #1
daveolywa
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Join Date: January 28, 2010
Posts: 3
Reloading 300 ultra mag.

I am new to reloading and have only reloaded .223 so far. I am going to start reloading my 300 Ultra mag and have not been able to find large rifle magnum primers anywhere.

I am planning to reload 125 gr nosler ballistic tip right now because I already had them. My question is:

Can I reload this case with large rifle primers (of which I have 1k) I am only shooting recreationally at this point. It will not be for hunting. I have ramshot magnum powder which i have read is a slower burning powder and the Lrg. Rifle primers probably will not work with this powder.

If I am able to do this what would be a good powder to use? Or am I just S.O.L. and need to wait till I can find magnum primers?
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Old January 28, 2010, 08:37 PM   #2
GeauxTide
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Join Date: April 20, 2009
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Gotta have a faster powder on the order of RL15, 17, 4895, or 4064. If you don't have a manual, buy Nosler #6 or try the powder manufacturers site.
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Old January 28, 2010, 08:45 PM   #3
mapsjanhere
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Hmm, 125 gr out of the 300 RUM? Trying to break the 4000 ft/s mark? Actually, Nosler has load data for it http://nosler.com/index.php?p=15&b=30cal&s=299 ,3800 ft/s. But the bullets are probably explode on impact.
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I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.
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Old January 28, 2010, 09:37 PM   #4
Sidewinder72
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Join Date: November 25, 2008
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I use R 25 and 200 A.B. Have never tried anything less than 180 gr.
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