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Best load for 7RUM

 
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  #8  
Old 01-03-2008, 11:22 PM
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Join Date: Jan 2007
Location: MS
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mine will not shoot with any powder I tried except retumbo and the 160 accubond....but it does very well with this combo.
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  #9  
Old 01-04-2008, 09:56 AM
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Join Date: Dec 2006
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I also have a Sendero in 7MMRUM with brake. i dont have my data handy ,will look for it soon as i have a minute i worked up a load and i recall 87 and 92 grains worked well .i coulda used RL 25 or retumbo or possibly H1000. But im leanin towards the retumbo .As im still working up diffrent bullets up i think im usin 160`s or 168 hpbt at the moment ,Sorry cant be of more help to you at this moment .Ditto on makin the ammo fit the mag
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  #10  
Old 01-05-2008, 06:51 PM
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new data

Was back at the range today. Tried Retumbo with 160 AB no help Tried 3 different loads 88-90 gr. Tried 168 berger with 90 gr of retumbo much better. Going back tommorrow to back up what I found today with 10 to 15 rounds My gun seems to get worse the more I push it. Around 3000-3100 fps it seems better. Have you guys found the same on stock guns if you push the velocity the bullets seems to spray
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  #11  
Old 01-06-2008, 12:07 AM
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Join Date: Oct 2006
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Retumbo

What I found to work in my brothers sendero,

Mag lenght-OAL 4.1015 Stoney point gauge
160 Accubonds
215m primer
Rem Brass
93gr Retumbo
Velocity 2347

I think a little faster powder would get more velocity--was thinking H1000.
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